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Finding the Fourth Proportional to 40,886.20, 61,280.70 and 17,193.70

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Solution

The fourth proportional to 40,886.20, 61,280.70 and 17,193.70 is: 25,770.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,886.20 : 61,280.70 = 17,193.70 : x
  2. Step 2: Convert to fraction form
    40,886.20/61,280.70 = 17,193.70/x
  3. Step 3: Cross multiply
    40,886.20x = 61,280.70 × 17,193.70
  4. Step 4: Simplify right side
    40,886.20x = 1,053,641,971.59
  5. Step 5: Solve for x
    x = 1,053,641,971.59/40,886.20
  6. Step 6: Final answer
    x = 25,770.11

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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.