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Finding the Fourth Proportional to 29,040.78, 40,080.18 and 17,104.02

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Solution

The fourth proportional to 29,040.78, 40,080.18 and 17,104.02 is: 23,605.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,040.78 : 40,080.18 = 17,104.02 : x
  2. Step 2: Convert to fraction form
    29,040.78/40,080.18 = 17,104.02/x
  3. Step 3: Cross multiply
    29,040.78x = 40,080.18 × 17,104.02
  4. Step 4: Simplify right side
    29,040.78x = 685,532,200.32
  5. Step 5: Solve for x
    x = 685,532,200.32/29,040.78
  6. Step 6: Final answer
    x = 23,605.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.