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Finding the Fourth Proportional to 61,844.98, 92,691.44 and 28,518.78

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Solution

The fourth proportional to 61,844.98, 92,691.44 and 28,518.78 is: 42,743.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,844.98 : 92,691.44 = 28,518.78 : x
  2. Step 2: Convert to fraction form
    61,844.98/92,691.44 = 28,518.78/x
  3. Step 3: Cross multiply
    61,844.98x = 92,691.44 × 28,518.78
  4. Step 4: Simplify right side
    61,844.98x = 2,643,446,785.24
  5. Step 5: Solve for x
    x = 2,643,446,785.24/61,844.98
  6. Step 6: Final answer
    x = 42,743.11

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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.