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Finding the Fourth Proportional to 41,760.61, 62,644.80 and 13,680.88

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Solution

The fourth proportional to 41,760.61, 62,644.80 and 13,680.88 is: 20,522.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,760.61 : 62,644.80 = 13,680.88 : x
  2. Step 2: Convert to fraction form
    41,760.61/62,644.80 = 13,680.88/x
  3. Step 3: Cross multiply
    41,760.61x = 62,644.80 × 13,680.88
  4. Step 4: Simplify right side
    41,760.61x = 857,035,991.42
  5. Step 5: Solve for x
    x = 857,035,991.42/41,760.61
  6. Step 6: Final answer
    x = 20,522.59

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1.5x scale

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.