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Finding the Fourth Proportional to 84,123.20, 126,183.90 and 24,959.46

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Solution

The fourth proportional to 84,123.20, 126,183.90 and 24,959.46 is: 37,438.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,123.20 : 126,183.90 = 24,959.46 : x
  2. Step 2: Convert to fraction form
    84,123.20/126,183.90 = 24,959.46/x
  3. Step 3: Cross multiply
    84,123.20x = 126,183.90 × 24,959.46
  4. Step 4: Simplify right side
    84,123.20x = 3,149,482,004.69
  5. Step 5: Solve for x
    x = 3,149,482,004.69/84,123.20
  6. Step 6: Final answer
    x = 37,438.92

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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.