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Finding the Fourth Proportional to 6,959.68, 9,604.29 and 3,815.86

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Solution

The fourth proportional to 6,959.68, 9,604.29 and 3,815.86 is: 5,265.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,959.68 : 9,604.29 = 3,815.86 : x
  2. Step 2: Convert to fraction form
    6,959.68/9,604.29 = 3,815.86/x
  3. Step 3: Cross multiply
    6,959.68x = 9,604.29 × 3,815.86
  4. Step 4: Simplify right side
    6,959.68x = 36,648,626.04
  5. Step 5: Solve for x
    x = 36,648,626.04/6,959.68
  6. Step 6: Final answer
    x = 5,265.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.