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Finding the Fourth Proportional to 85,000.92, 127,515.96 and 25,842.48

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Solution

The fourth proportional to 85,000.92, 127,515.96 and 25,842.48 is: 38,768.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,000.92 : 127,515.96 = 25,842.48 : x
  2. Step 2: Convert to fraction form
    85,000.92/127,515.96 = 25,842.48/x
  3. Step 3: Cross multiply
    85,000.92x = 127,515.96 × 25,842.48
  4. Step 4: Simplify right side
    85,000.92x = 3,295,328,645.98
  5. Step 5: Solve for x
    x = 3,295,328,645.98/85,000.92
  6. Step 6: Final answer
    x = 38,768.15

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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.