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Finding the Fourth Proportional to 53,711.70, 80,569.14 and 25,634.71

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Solution

The fourth proportional to 53,711.70, 80,569.14 and 25,634.71 is: 38,452.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,711.70 : 80,569.14 = 25,634.71 : x
  2. Step 2: Convert to fraction form
    53,711.70/80,569.14 = 25,634.71/x
  3. Step 3: Cross multiply
    53,711.70x = 80,569.14 × 25,634.71
  4. Step 4: Simplify right side
    53,711.70x = 2,065,366,538.85
  5. Step 5: Solve for x
    x = 2,065,366,538.85/53,711.70
  6. Step 6: Final answer
    x = 38,452.82

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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.