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Finding the Fourth Proportional to 7,866,691.61, 11,798,916.39 and 2,475,202.01

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Solution

The fourth proportional to 7,866,691.61, 11,798,916.39 and 2,475,202.01 is: 3,712,450.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,866,691.61 : 11,798,916.39 = 2,475,202.01 : x
  2. Step 2: Convert to fraction form
    7,866,691.61/11,798,916.39 = 2,475,202.01/x
  3. Step 3: Cross multiply
    7,866,691.61x = 11,798,916.39 × 2,475,202.01
  4. Step 4: Simplify right side
    7,866,691.61x = 29,204,701,505,355.36
  5. Step 5: Solve for x
    x = 29,204,701,505,355.36/7,866,691.61
  6. Step 6: Final answer
    x = 3,712,450.29

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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.