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Finding the Fourth Proportional to 61,921.67, 92,882.49 and 15,174.14

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Solution

The fourth proportional to 61,921.67, 92,882.49 and 15,174.14 is: 22,761.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,921.67 : 92,882.49 = 15,174.14 : x
  2. Step 2: Convert to fraction form
    61,921.67/92,882.49 = 15,174.14/x
  3. Step 3: Cross multiply
    61,921.67x = 92,882.49 × 15,174.14
  4. Step 4: Simplify right side
    61,921.67x = 1,409,411,906.81
  5. Step 5: Solve for x
    x = 1,409,411,906.81/61,921.67
  6. Step 6: Final answer
    x = 22,761.21

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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.