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Finding the Fourth Proportional to 43,753.68, 65,648.88 and 18,799.20

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Solution

The fourth proportional to 43,753.68, 65,648.88 and 18,799.20 is: 28,206.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,753.68 : 65,648.88 = 18,799.20 : x
  2. Step 2: Convert to fraction form
    43,753.68/65,648.88 = 18,799.20/x
  3. Step 3: Cross multiply
    43,753.68x = 65,648.88 × 18,799.20
  4. Step 4: Simplify right side
    43,753.68x = 1,234,146,424.90
  5. Step 5: Solve for x
    x = 1,234,146,424.90/43,753.68
  6. Step 6: Final answer
    x = 28,206.69

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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.