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Finding the Fourth Proportional to 67,043.60, 100,566.31 and 17,124.11

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Solution

The fourth proportional to 67,043.60, 100,566.31 and 17,124.11 is: 25,686.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,043.60 : 100,566.31 = 17,124.11 : x
  2. Step 2: Convert to fraction form
    67,043.60/100,566.31 = 17,124.11/x
  3. Step 3: Cross multiply
    67,043.60x = 100,566.31 × 17,124.11
  4. Step 4: Simplify right side
    67,043.60x = 1,722,108,418.32
  5. Step 5: Solve for x
    x = 1,722,108,418.32/67,043.60
  6. Step 6: Final answer
    x = 25,686.40

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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.