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Finding the Fourth Proportional to 29,012.92, 40,040.40 and 17,080

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Solution

The fourth proportional to 29,012.92, 40,040.40 and 17,080 is: 23,571.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,012.92 : 40,040.40 = 17,080 : x
  2. Step 2: Convert to fraction form
    29,012.92/40,040.40 = 17,080/x
  3. Step 3: Cross multiply
    29,012.92x = 40,040.40 × 17,080
  4. Step 4: Simplify right side
    29,012.92x = 683,890,032
  5. Step 5: Solve for x
    x = 683,890,032/29,012.92
  6. Step 6: Final answer
    x = 23,571.91

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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.