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Finding the Fourth Proportional to 61,560.89, 92,344.10 and 18,863.19

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Solution

The fourth proportional to 61,560.89, 92,344.10 and 18,863.19 is: 28,295.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,560.89 : 92,344.10 = 18,863.19 : x
  2. Step 2: Convert to fraction form
    61,560.89/92,344.10 = 18,863.19/x
  3. Step 3: Cross multiply
    61,560.89x = 92,344.10 × 18,863.19
  4. Step 4: Simplify right side
    61,560.89x = 1,741,904,303.68
  5. Step 5: Solve for x
    x = 1,741,904,303.68/61,560.89
  6. Step 6: Final answer
    x = 28,295.63

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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.