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Finding the Fourth Proportional to 17,879.85, 26,821.08 and 4,732.13

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Solution

The fourth proportional to 17,879.85, 26,821.08 and 4,732.13 is: 7,098.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,879.85 : 26,821.08 = 4,732.13 : x
  2. Step 2: Convert to fraction form
    17,879.85/26,821.08 = 4,732.13/x
  3. Step 3: Cross multiply
    17,879.85x = 26,821.08 × 4,732.13
  4. Step 4: Simplify right side
    17,879.85x = 126,920,703.20
  5. Step 5: Solve for x
    x = 126,920,703.20/17,879.85
  6. Step 6: Final answer
    x = 7,098.53

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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.