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Finding the Fourth Proportional to 67,792.46, 101,694.76 and 17,871.80

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Solution

The fourth proportional to 67,792.46, 101,694.76 and 17,871.80 is: 26,809.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,792.46 : 101,694.76 = 17,871.80 : x
  2. Step 2: Convert to fraction form
    67,792.46/101,694.76 = 17,871.80/x
  3. Step 3: Cross multiply
    67,792.46x = 101,694.76 × 17,871.80
  4. Step 4: Simplify right side
    67,792.46x = 1,817,468,411.77
  5. Step 5: Solve for x
    x = 1,817,468,411.77/67,792.46
  6. Step 6: Final answer
    x = 26,809.30

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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.