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Finding the Fourth Proportional to 62,605.89, 86,398.29 and 34,311.60

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Solution

The fourth proportional to 62,605.89, 86,398.29 and 34,311.60 is: 47,351.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,605.89 : 86,398.29 = 34,311.60 : x
  2. Step 2: Convert to fraction form
    62,605.89/86,398.29 = 34,311.60/x
  3. Step 3: Cross multiply
    62,605.89x = 86,398.29 × 34,311.60
  4. Step 4: Simplify right side
    62,605.89x = 2,964,463,567.16
  5. Step 5: Solve for x
    x = 2,964,463,567.16/62,605.89
  6. Step 6: Final answer
    x = 47,351.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.