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Finding the Fourth Proportional to 7,294.69, 10,939.35 and 2,613.43

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Solution

The fourth proportional to 7,294.69, 10,939.35 and 2,613.43 is: 3,919.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,294.69 : 10,939.35 = 2,613.43 : x
  2. Step 2: Convert to fraction form
    7,294.69/10,939.35 = 2,613.43/x
  3. Step 3: Cross multiply
    7,294.69x = 10,939.35 × 2,613.43
  4. Step 4: Simplify right side
    7,294.69x = 28,589,225.47
  5. Step 5: Solve for x
    x = 28,589,225.47/7,294.69
  6. Step 6: Final answer
    x = 3,919.18

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1.5x scale

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.