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Finding the Fourth Proportional to 32,581.80, 48,843.90 and 19,420.20

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Solution

The fourth proportional to 32,581.80, 48,843.90 and 19,420.20 is: 29,113.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,581.80 : 48,843.90 = 19,420.20 : x
  2. Step 2: Convert to fraction form
    32,581.80/48,843.90 = 19,420.20/x
  3. Step 3: Cross multiply
    32,581.80x = 48,843.90 × 19,420.20
  4. Step 4: Simplify right side
    32,581.80x = 948,558,306.78
  5. Step 5: Solve for x
    x = 948,558,306.78/32,581.80
  6. Step 6: Final answer
    x = 29,113.13

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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.