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Finding the Fourth Proportional to 62,839.42, 94,239.12 and 20,711.64

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Solution

The fourth proportional to 62,839.42, 94,239.12 and 20,711.64 is: 31,060.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,839.42 : 94,239.12 = 20,711.64 : x
  2. Step 2: Convert to fraction form
    62,839.42/94,239.12 = 20,711.64/x
  3. Step 3: Cross multiply
    62,839.42x = 94,239.12 × 20,711.64
  4. Step 4: Simplify right side
    62,839.42x = 1,951,846,727.36
  5. Step 5: Solve for x
    x = 1,951,846,727.36/62,839.42
  6. Step 6: Final answer
    x = 31,060.86

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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.