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Finding the Fourth Proportional to 17,805.52, 26,712.04 and 5,326.52

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Solution

The fourth proportional to 17,805.52, 26,712.04 and 5,326.52 is: 7,990.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,805.52 : 26,712.04 = 5,326.52 : x
  2. Step 2: Convert to fraction form
    17,805.52/26,712.04 = 5,326.52/x
  3. Step 3: Cross multiply
    17,805.52x = 26,712.04 × 5,326.52
  4. Step 4: Simplify right side
    17,805.52x = 142,282,215.30
  5. Step 5: Solve for x
    x = 142,282,215.30/17,805.52
  6. Step 6: Final answer
    x = 7,990.90

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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.