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Finding the Fourth Proportional to 67,440.75, 101,166 and 25,887.75

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Solution

The fourth proportional to 67,440.75, 101,166 and 25,887.75 is: 38,833.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,440.75 : 101,166 = 25,887.75 : x
  2. Step 2: Convert to fraction form
    67,440.75/101,166 = 25,887.75/x
  3. Step 3: Cross multiply
    67,440.75x = 101,166 × 25,887.75
  4. Step 4: Simplify right side
    67,440.75x = 2,618,960,116.50
  5. Step 5: Solve for x
    x = 2,618,960,116.50/67,440.75
  6. Step 6: Final answer
    x = 38,833.50

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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.