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Finding the Fourth Proportional to 32,708.80, 49,063.20 and 17,131.20

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Solution

The fourth proportional to 32,708.80, 49,063.20 and 17,131.20 is: 25,696.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,708.80 : 49,063.20 = 17,131.20 : x
  2. Step 2: Convert to fraction form
    32,708.80/49,063.20 = 17,131.20/x
  3. Step 3: Cross multiply
    32,708.80x = 49,063.20 × 17,131.20
  4. Step 4: Simplify right side
    32,708.80x = 840,511,491.84
  5. Step 5: Solve for x
    x = 840,511,491.84/32,708.80
  6. Step 6: Final answer
    x = 25,696.80

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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.