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Finding the Fourth Proportional to 40,086.61, 60,113.00 and 12,010.66

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Solution

The fourth proportional to 40,086.61, 60,113.00 and 12,010.66 is: 18,010.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,086.61 : 60,113.00 = 12,010.66 : x
  2. Step 2: Convert to fraction form
    40,086.61/60,113.00 = 12,010.66/x
  3. Step 3: Cross multiply
    40,086.61x = 60,113.00 × 12,010.66
  4. Step 4: Simplify right side
    40,086.61x = 721,996,443.96
  5. Step 5: Solve for x
    x = 721,996,443.96/40,086.61
  6. Step 6: Final answer
    x = 18,010.91

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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.