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Finding the Fourth Proportional to 11,087,998.40, 15,485,406.40 and 11,087,998.40

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Solution

The fourth proportional to 11,087,998.40, 15,485,406.40 and 11,087,998.40 is: 15,485,406.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,087,998.40 : 15,485,406.40 = 11,087,998.40 : x
  2. Step 2: Convert to fraction form
    11,087,998.40/15,485,406.40 = 11,087,998.40/x
  3. Step 3: Cross multiply
    11,087,998.40x = 15,485,406.40 × 11,087,998.40
  4. Step 4: Simplify right side
    11,087,998.40x = 171,702,161,386,549.78
  5. Step 5: Solve for x
    x = 171,702,161,386,549.78/11,087,998.40
  6. Step 6: Final answer
    x = 15,485,406.40

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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 (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.