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Finding the Fourth Proportional to 38,777.88, 58,169.82 and 12,483.42

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Solution

The fourth proportional to 38,777.88, 58,169.82 and 12,483.42 is: 18,726.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,777.88 : 58,169.82 = 12,483.42 : x
  2. Step 2: Convert to fraction form
    38,777.88/58,169.82 = 12,483.42/x
  3. Step 3: Cross multiply
    38,777.88x = 58,169.82 × 12,483.42
  4. Step 4: Simplify right side
    38,777.88x = 726,158,294.38
  5. Step 5: Solve for x
    x = 726,158,294.38/38,777.88
  6. Step 6: Final answer
    x = 18,726.10

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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.