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Finding the Fourth Proportional to 17,079.80, 25,634.10 and 7,734.20

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Solution

The fourth proportional to 17,079.80, 25,634.10 and 7,734.20 is: 11,607.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,079.80 : 25,634.10 = 7,734.20 : x
  2. Step 2: Convert to fraction form
    17,079.80/25,634.10 = 7,734.20/x
  3. Step 3: Cross multiply
    17,079.80x = 25,634.10 × 7,734.20
  4. Step 4: Simplify right side
    17,079.80x = 198,259,256.22
  5. Step 5: Solve for x
    x = 198,259,256.22/17,079.80
  6. Step 6: Final answer
    x = 11,607.82

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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.