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Finding the Fourth Proportional to 67,490.78, 101,225.75 and 22,512.92

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Solution

The fourth proportional to 67,490.78, 101,225.75 and 22,512.92 is: 33,765.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,490.78 : 101,225.75 = 22,512.92 : x
  2. Step 2: Convert to fraction form
    67,490.78/101,225.75 = 22,512.92/x
  3. Step 3: Cross multiply
    67,490.78x = 101,225.75 × 22,512.92
  4. Step 4: Simplify right side
    67,490.78x = 2,278,887,352.19
  5. Step 5: Solve for x
    x = 2,278,887,352.19/67,490.78
  6. Step 6: Final answer
    x = 33,765.91

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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.