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Finding the Fourth Proportional to 10,936,329.20, 16,404,493.80 and 10,306,473.20

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Solution

The fourth proportional to 10,936,329.20, 16,404,493.80 and 10,306,473.20 is: 15,459,709.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,936,329.20 : 16,404,493.80 = 10,306,473.20 : x
  2. Step 2: Convert to fraction form
    10,936,329.20/16,404,493.80 = 10,306,473.20/x
  3. Step 3: Cross multiply
    10,936,329.20x = 16,404,493.80 × 10,306,473.20
  4. Step 4: Simplify right side
    10,936,329.20x = 169,072,475,709,266.16
  5. Step 5: Solve for x
    x = 169,072,475,709,266.16/10,936,329.20
  6. Step 6: Final answer
    x = 15,459,709.80

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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.