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Finding the Fourth Proportional to 17,805.11, 26,707.71 and 6,708.80

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Solution

The fourth proportional to 17,805.11, 26,707.71 and 6,708.80 is: 10,063.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,805.11 : 26,707.71 = 6,708.80 : x
  2. Step 2: Convert to fraction form
    17,805.11/26,707.71 = 6,708.80/x
  3. Step 3: Cross multiply
    17,805.11x = 26,707.71 × 6,708.80
  4. Step 4: Simplify right side
    17,805.11x = 179,176,551.31
  5. Step 5: Solve for x
    x = 179,176,551.31/17,805.11
  6. Step 6: Final answer
    x = 10,063.21

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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.