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Finding the Fourth Proportional to 61,513.80, 92,270.76 and 17,140.68

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Solution

The fourth proportional to 61,513.80, 92,270.76 and 17,140.68 is: 25,711.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,513.80 : 92,270.76 = 17,140.68 : x
  2. Step 2: Convert to fraction form
    61,513.80/92,270.76 = 17,140.68/x
  3. Step 3: Cross multiply
    61,513.80x = 92,270.76 × 17,140.68
  4. Step 4: Simplify right side
    61,513.80x = 1,581,583,570.52
  5. Step 5: Solve for x
    x = 1,581,583,570.52/61,513.80
  6. Step 6: Final answer
    x = 25,711.04

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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.