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Finding the Fourth Proportional to 32,982.80, 49,474.20 and 13,251.20

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Solution

The fourth proportional to 32,982.80, 49,474.20 and 13,251.20 is: 19,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,982.80 : 49,474.20 = 13,251.20 : x
  2. Step 2: Convert to fraction form
    32,982.80/49,474.20 = 13,251.20/x
  3. Step 3: Cross multiply
    32,982.80x = 49,474.20 × 13,251.20
  4. Step 4: Simplify right side
    32,982.80x = 655,592,519.04
  5. Step 5: Solve for x
    x = 655,592,519.04/32,982.80
  6. Step 6: Final answer
    x = 19,876.80

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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.