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Finding the Fourth Proportional to 85,255.92, 127,883.88 and 38,496.24

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Solution

The fourth proportional to 85,255.92, 127,883.88 and 38,496.24 is: 57,744.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,255.92 : 127,883.88 = 38,496.24 : x
  2. Step 2: Convert to fraction form
    85,255.92/127,883.88 = 38,496.24/x
  3. Step 3: Cross multiply
    85,255.92x = 127,883.88 × 38,496.24
  4. Step 4: Simplify right side
    85,255.92x = 4,923,048,536.61
  5. Step 5: Solve for x
    x = 4,923,048,536.61/85,255.92
  6. Step 6: Final answer
    x = 57,744.36

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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.