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Finding the Fourth Proportional to 61,871.47, 92,687.82 and 36,931.48

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Solution

The fourth proportional to 61,871.47, 92,687.82 and 36,931.48 is: 55,325.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,871.47 : 92,687.82 = 36,931.48 : x
  2. Step 2: Convert to fraction form
    61,871.47/92,687.82 = 36,931.48/x
  3. Step 3: Cross multiply
    61,871.47x = 92,687.82 × 36,931.48
  4. Step 4: Simplify right side
    61,871.47x = 3,423,098,370.57
  5. Step 5: Solve for x
    x = 3,423,098,370.57/61,871.47
  6. Step 6: Final answer
    x = 55,325.96

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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.