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Finding the Fourth Proportional to 67,434.76, 101,165.16 and 25,878.52

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Solution

The fourth proportional to 67,434.76, 101,165.16 and 25,878.52 is: 38,822.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,434.76 : 101,165.16 = 25,878.52 : x
  2. Step 2: Convert to fraction form
    67,434.76/101,165.16 = 25,878.52/x
  3. Step 3: Cross multiply
    67,434.76x = 101,165.16 × 25,878.52
  4. Step 4: Simplify right side
    67,434.76x = 2,618,004,616.36
  5. Step 5: Solve for x
    x = 2,618,004,616.36/67,434.76
  6. Step 6: Final answer
    x = 38,822.78

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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.