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Finding the Fourth Proportional to 39,200.70, 58,801.05 and 38,423.10

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Solution

The fourth proportional to 39,200.70, 58,801.05 and 38,423.10 is: 57,634.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,200.70 : 58,801.05 = 38,423.10 : x
  2. Step 2: Convert to fraction form
    39,200.70/58,801.05 = 38,423.10/x
  3. Step 3: Cross multiply
    39,200.70x = 58,801.05 × 38,423.10
  4. Step 4: Simplify right side
    39,200.70x = 2,259,318,624.26
  5. Step 5: Solve for x
    x = 2,259,318,624.26/39,200.70
  6. Step 6: Final answer
    x = 57,634.65

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Similar ratio
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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.