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Finding the Fourth Proportional to 61,891.32, 85,447.26 and 58,348.92

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Solution

The fourth proportional to 61,891.32, 85,447.26 and 58,348.92 is: 80,556.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,891.32 : 85,447.26 = 58,348.92 : x
  2. Step 2: Convert to fraction form
    61,891.32/85,447.26 = 58,348.92/x
  3. Step 3: Cross multiply
    61,891.32x = 85,447.26 × 58,348.92
  4. Step 4: Simplify right side
    61,891.32x = 4,985,755,337.96
  5. Step 5: Solve for x
    x = 4,985,755,337.96/61,891.32
  6. Step 6: Final answer
    x = 80,556.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.