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Finding the Fourth Proportional to 12,961,203.90, 19,441,805.85 and 10,882,679.10

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Solution

The fourth proportional to 12,961,203.90, 19,441,805.85 and 10,882,679.10 is: 16,324,018.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961,203.90 : 19,441,805.85 = 10,882,679.10 : x
  2. Step 2: Convert to fraction form
    12,961,203.90/19,441,805.85 = 10,882,679.10/x
  3. Step 3: Cross multiply
    12,961,203.90x = 19,441,805.85 × 10,882,679.10
  4. Step 4: Simplify right side
    12,961,203.90x = 211,578,934,190,052.75
  5. Step 5: Solve for x
    x = 211,578,934,190,052.75/12,961,203.90
  6. Step 6: Final answer
    x = 16,324,018.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.