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Finding the Fourth Proportional to 82,067.52, 113,267.52 and 48,535.68

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Solution

The fourth proportional to 82,067.52, 113,267.52 and 48,535.68 is: 66,987.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,067.52 : 113,267.52 = 48,535.68 : x
  2. Step 2: Convert to fraction form
    82,067.52/113,267.52 = 48,535.68/x
  3. Step 3: Cross multiply
    82,067.52x = 113,267.52 × 48,535.68
  4. Step 4: Simplify right side
    82,067.52x = 5,497,516,105.11
  5. Step 5: Solve for x
    x = 5,497,516,105.11/82,067.52
  6. Step 6: Final answer
    x = 66,987.72

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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.