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Finding the Fourth Proportional to 60,611.31, 90,874.71 and 26,858.95

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Solution

The fourth proportional to 60,611.31, 90,874.71 and 26,858.95 is: 40,269.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,611.31 : 90,874.71 = 26,858.95 : x
  2. Step 2: Convert to fraction form
    60,611.31/90,874.71 = 26,858.95/x
  3. Step 3: Cross multiply
    60,611.31x = 90,874.71 × 26,858.95
  4. Step 4: Simplify right side
    60,611.31x = 2,440,799,064.97
  5. Step 5: Solve for x
    x = 2,440,799,064.97/60,611.31
  6. Step 6: Final answer
    x = 40,269.70

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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.