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Finding the Fourth Proportional to 61,390.91, 92,086.02 and 15,798.57

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Solution

The fourth proportional to 61,390.91, 92,086.02 and 15,798.57 is: 23,697.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,390.91 : 92,086.02 = 15,798.57 : x
  2. Step 2: Convert to fraction form
    61,390.91/92,086.02 = 15,798.57/x
  3. Step 3: Cross multiply
    61,390.91x = 92,086.02 × 15,798.57
  4. Step 4: Simplify right side
    61,390.91x = 1,454,827,432.99
  5. Step 5: Solve for x
    x = 1,454,827,432.99/61,390.91
  6. Step 6: Final answer
    x = 23,697.77

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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.