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Finding the Fourth Proportional to 40,443.80, 60,644.10 and 17,043.80

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Solution

The fourth proportional to 40,443.80, 60,644.10 and 17,043.80 is: 25,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,443.80 : 60,644.10 = 17,043.80 : x
  2. Step 2: Convert to fraction form
    40,443.80/60,644.10 = 17,043.80/x
  3. Step 3: Cross multiply
    40,443.80x = 60,644.10 × 17,043.80
  4. Step 4: Simplify right side
    40,443.80x = 1,033,605,911.58
  5. Step 5: Solve for x
    x = 1,033,605,911.58/40,443.80
  6. Step 6: Final answer
    x = 25,556.60

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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.