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Finding the Fourth Proportional to 67,046.61, 100,570.80 and 17,127.12

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Solution

The fourth proportional to 67,046.61, 100,570.80 and 17,127.12 is: 25,690.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,046.61 : 100,570.80 = 17,127.12 : x
  2. Step 2: Convert to fraction form
    67,046.61/100,570.80 = 17,127.12/x
  3. Step 3: Cross multiply
    67,046.61x = 100,570.80 × 17,127.12
  4. Step 4: Simplify right side
    67,046.61x = 1,722,488,160.10
  5. Step 5: Solve for x
    x = 1,722,488,160.10/67,046.61
  6. Step 6: Final answer
    x = 25,690.91

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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.