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Finding the Fourth Proportional to 40,659.84, 60,989.76 and 17,269.92

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Solution

The fourth proportional to 40,659.84, 60,989.76 and 17,269.92 is: 25,904.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,659.84 : 60,989.76 = 17,269.92 : x
  2. Step 2: Convert to fraction form
    40,659.84/60,989.76 = 17,269.92/x
  3. Step 3: Cross multiply
    40,659.84x = 60,989.76 × 17,269.92
  4. Step 4: Simplify right side
    40,659.84x = 1,053,288,276.02
  5. Step 5: Solve for x
    x = 1,053,288,276.02/40,659.84
  6. Step 6: Final answer
    x = 25,904.88

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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.