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Finding the Fourth Proportional to 17,122.74, 25,693.74 and 6,741.78

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Solution

The fourth proportional to 17,122.74, 25,693.74 and 6,741.78 is: 10,116.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,122.74 : 25,693.74 = 6,741.78 : x
  2. Step 2: Convert to fraction form
    17,122.74/25,693.74 = 6,741.78/x
  3. Step 3: Cross multiply
    17,122.74x = 25,693.74 × 6,741.78
  4. Step 4: Simplify right side
    17,122.74x = 173,221,542.46
  5. Step 5: Solve for x
    x = 173,221,542.46/17,122.74
  6. Step 6: Final answer
    x = 10,116.46

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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.