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Finding the Fourth Proportional to 72,425.91, 108,634.20 and 25,039.71

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Solution

The fourth proportional to 72,425.91, 108,634.20 and 25,039.71 is: 37,557.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,425.91 : 108,634.20 = 25,039.71 : x
  2. Step 2: Convert to fraction form
    72,425.91/108,634.20 = 25,039.71/x
  3. Step 3: Cross multiply
    72,425.91x = 108,634.20 × 25,039.71
  4. Step 4: Simplify right side
    72,425.91x = 2,720,168,864.08
  5. Step 5: Solve for x
    x = 2,720,168,864.08/72,425.91
  6. Step 6: Final answer
    x = 37,557.95

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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.