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Finding the Fourth Proportional to 17,659.85, 26,484.44 and 7,126.47

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Solution

The fourth proportional to 17,659.85, 26,484.44 and 7,126.47 is: 10,687.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,659.85 : 26,484.44 = 7,126.47 : x
  2. Step 2: Convert to fraction form
    17,659.85/26,484.44 = 7,126.47/x
  3. Step 3: Cross multiply
    17,659.85x = 26,484.44 × 7,126.47
  4. Step 4: Simplify right side
    17,659.85x = 188,740,531.49
  5. Step 5: Solve for x
    x = 188,740,531.49/17,659.85
  6. Step 6: Final answer
    x = 10,687.55

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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.