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Finding the Fourth Proportional to 38,497.80, 57,789.90 and 29,771.40

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Solution

The fourth proportional to 38,497.80, 57,789.90 and 29,771.40 is: 44,690.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,497.80 : 57,789.90 = 29,771.40 : x
  2. Step 2: Convert to fraction form
    38,497.80/57,789.90 = 29,771.40/x
  3. Step 3: Cross multiply
    38,497.80x = 57,789.90 × 29,771.40
  4. Step 4: Simplify right side
    38,497.80x = 1,720,486,228.86
  5. Step 5: Solve for x
    x = 1,720,486,228.86/38,497.80
  6. Step 6: Final answer
    x = 44,690.51

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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.