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Finding the Fourth Proportional to 39,654.84, 59,491.32 and 13,358.88

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Solution

The fourth proportional to 39,654.84, 59,491.32 and 13,358.88 is: 20,041.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,654.84 : 59,491.32 = 13,358.88 : x
  2. Step 2: Convert to fraction form
    39,654.84/59,491.32 = 13,358.88/x
  3. Step 3: Cross multiply
    39,654.84x = 59,491.32 × 13,358.88
  4. Step 4: Simplify right side
    39,654.84x = 794,737,404.92
  5. Step 5: Solve for x
    x = 794,737,404.92/39,654.84
  6. Step 6: Final answer
    x = 20,041.37

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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.