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Finding the Fourth Proportional to 40,456.50, 60,687.90 and 18,282.30

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Solution

The fourth proportional to 40,456.50, 60,687.90 and 18,282.30 is: 27,424.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,456.50 : 60,687.90 = 18,282.30 : x
  2. Step 2: Convert to fraction form
    40,456.50/60,687.90 = 18,282.30/x
  3. Step 3: Cross multiply
    40,456.50x = 60,687.90 × 18,282.30
  4. Step 4: Simplify right side
    40,456.50x = 1,109,514,394.17
  5. Step 5: Solve for x
    x = 1,109,514,394.17/40,456.50
  6. Step 6: Final answer
    x = 27,424.87

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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.