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Finding the Fourth Proportional to 17,929.57, 26,894.13 and 8,061.88

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Solution

The fourth proportional to 17,929.57, 26,894.13 and 8,061.88 is: 12,092.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,929.57 : 26,894.13 = 8,061.88 : x
  2. Step 2: Convert to fraction form
    17,929.57/26,894.13 = 8,061.88/x
  3. Step 3: Cross multiply
    17,929.57x = 26,894.13 × 8,061.88
  4. Step 4: Simplify right side
    17,929.57x = 216,817,248.76
  5. Step 5: Solve for x
    x = 216,817,248.76/17,929.57
  6. Step 6: Final answer
    x = 12,092.72

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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.