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Finding the Fourth Proportional to 71,785.52, 107,678.72 and 25,038.44

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Solution

The fourth proportional to 71,785.52, 107,678.72 and 25,038.44 is: 37,557.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,785.52 : 107,678.72 = 25,038.44 : x
  2. Step 2: Convert to fraction form
    71,785.52/107,678.72 = 25,038.44/x
  3. Step 3: Cross multiply
    71,785.52x = 107,678.72 × 25,038.44
  4. Step 4: Simplify right side
    71,785.52x = 2,696,107,170.00
  5. Step 5: Solve for x
    x = 2,696,107,170.00/71,785.52
  6. Step 6: Final answer
    x = 37,557.81

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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.