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Finding the Fourth Proportional to 23,909.80, 35,711.72 and 21,654.96

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Solution

The fourth proportional to 23,909.80, 35,711.72 and 21,654.96 is: 32,343.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,909.80 : 35,711.72 = 21,654.96 : x
  2. Step 2: Convert to fraction form
    23,909.80/35,711.72 = 21,654.96/x
  3. Step 3: Cross multiply
    23,909.80x = 35,711.72 × 21,654.96
  4. Step 4: Simplify right side
    23,909.80x = 773,335,868.13
  5. Step 5: Solve for x
    x = 773,335,868.13/23,909.80
  6. Step 6: Final answer
    x = 32,343.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.