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Finding the Fourth Proportional to 17,543.88, 26,328.78 and 13,169.88

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Solution

The fourth proportional to 17,543.88, 26,328.78 and 13,169.88 is: 19,764.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,543.88 : 26,328.78 = 13,169.88 : x
  2. Step 2: Convert to fraction form
    17,543.88/26,328.78 = 13,169.88/x
  3. Step 3: Cross multiply
    17,543.88x = 26,328.78 × 13,169.88
  4. Step 4: Simplify right side
    17,543.88x = 346,746,873.15
  5. Step 5: Solve for x
    x = 346,746,873.15/17,543.88
  6. Step 6: Final answer
    x = 19,764.55

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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.