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Finding the Fourth Proportional to 32,143.80, 48,248.10 and 15,517.20

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Solution

The fourth proportional to 32,143.80, 48,248.10 and 15,517.20 is: 23,291.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,143.80 : 48,248.10 = 15,517.20 : x
  2. Step 2: Convert to fraction form
    32,143.80/48,248.10 = 15,517.20/x
  3. Step 3: Cross multiply
    32,143.80x = 48,248.10 × 15,517.20
  4. Step 4: Simplify right side
    32,143.80x = 748,675,417.32
  5. Step 5: Solve for x
    x = 748,675,417.32/32,143.80
  6. Step 6: Final answer
    x = 23,291.44

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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.