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Finding the Fourth Proportional to 29,658.96, 40,921.20 and 17,717.94

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Solution

The fourth proportional to 29,658.96, 40,921.20 and 17,717.94 is: 24,445.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,658.96 : 40,921.20 = 17,717.94 : x
  2. Step 2: Convert to fraction form
    29,658.96/40,921.20 = 17,717.94/x
  3. Step 3: Cross multiply
    29,658.96x = 40,921.20 × 17,717.94
  4. Step 4: Simplify right side
    29,658.96x = 725,039,366.33
  5. Step 5: Solve for x
    x = 725,039,366.33/29,658.96
  6. Step 6: Final answer
    x = 24,445.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.