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Finding the Fourth Proportional to 61,990.44, 92,961.72 and 26,429.28

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Solution

The fourth proportional to 61,990.44, 92,961.72 and 26,429.28 is: 39,633.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,990.44 : 92,961.72 = 26,429.28 : x
  2. Step 2: Convert to fraction form
    61,990.44/92,961.72 = 26,429.28/x
  3. Step 3: Cross multiply
    61,990.44x = 92,961.72 × 26,429.28
  4. Step 4: Simplify right side
    61,990.44x = 2,456,911,327.16
  5. Step 5: Solve for x
    x = 2,456,911,327.16/61,990.44
  6. Step 6: Final answer
    x = 39,633.71

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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.