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Finding the Fourth Proportional to 60,086.97, 90,103.11 and 31,999.82

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Solution

The fourth proportional to 60,086.97, 90,103.11 and 31,999.82 is: 47,985.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,086.97 : 90,103.11 = 31,999.82 : x
  2. Step 2: Convert to fraction form
    60,086.97/90,103.11 = 31,999.82/x
  3. Step 3: Cross multiply
    60,086.97x = 90,103.11 × 31,999.82
  4. Step 4: Simplify right side
    60,086.97x = 2,883,282,850.92
  5. Step 5: Solve for x
    x = 2,883,282,850.92/60,086.97
  6. Step 6: Final answer
    x = 47,985.16

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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.