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Finding the Fourth Proportional to 61,882.75, 85,391.09 and 34,655.04

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Solution

The fourth proportional to 61,882.75, 85,391.09 and 34,655.04 is: 47,819.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,882.75 : 85,391.09 = 34,655.04 : x
  2. Step 2: Convert to fraction form
    61,882.75/85,391.09 = 34,655.04/x
  3. Step 3: Cross multiply
    61,882.75x = 85,391.09 × 34,655.04
  4. Step 4: Simplify right side
    61,882.75x = 2,959,231,639.59
  5. Step 5: Solve for x
    x = 2,959,231,639.59/61,882.75
  6. Step 6: Final answer
    x = 47,819.98

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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.