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Finding the Fourth Proportional to 38,757.59, 53,479.04 and 22,839.87

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Solution

The fourth proportional to 38,757.59, 53,479.04 and 22,839.87 is: 31,515.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,757.59 : 53,479.04 = 22,839.87 : x
  2. Step 2: Convert to fraction form
    38,757.59/53,479.04 = 22,839.87/x
  3. Step 3: Cross multiply
    38,757.59x = 53,479.04 × 22,839.87
  4. Step 4: Simplify right side
    38,757.59x = 1,221,454,407.67
  5. Step 5: Solve for x
    x = 1,221,454,407.67/38,757.59
  6. Step 6: Final answer
    x = 31,515.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.