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Finding the Fourth Proportional to 9,072,764.90, 13,609,147.35 and 8,009,882.90

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Solution

The fourth proportional to 9,072,764.90, 13,609,147.35 and 8,009,882.90 is: 12,014,824.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,072,764.90 : 13,609,147.35 = 8,009,882.90 : x
  2. Step 2: Convert to fraction form
    9,072,764.90/13,609,147.35 = 8,009,882.90/x
  3. Step 3: Cross multiply
    9,072,764.90x = 13,609,147.35 × 8,009,882.90
  4. Step 4: Simplify right side
    9,072,764.90x = 109,007,676,642,345.31
  5. Step 5: Solve for x
    x = 109,007,676,642,345.31/9,072,764.90
  6. Step 6: Final answer
    x = 12,014,824.35

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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.