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Finding the Fourth Proportional to 17,340.08, 25,990.68 and 6,939.68

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Solution

The fourth proportional to 17,340.08, 25,990.68 and 6,939.68 is: 10,401.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,340.08 : 25,990.68 = 6,939.68 : x
  2. Step 2: Convert to fraction form
    17,340.08/25,990.68 = 6,939.68/x
  3. Step 3: Cross multiply
    17,340.08x = 25,990.68 × 6,939.68
  4. Step 4: Simplify right side
    17,340.08x = 180,367,002.18
  5. Step 5: Solve for x
    x = 180,367,002.18/17,340.08
  6. Step 6: Final answer
    x = 10,401.74

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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.