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Finding the Fourth Proportional to 6,275.66, 9,411.84 and 2,982.20

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Solution

The fourth proportional to 6,275.66, 9,411.84 and 2,982.20 is: 4,472.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,275.66 : 9,411.84 = 2,982.20 : x
  2. Step 2: Convert to fraction form
    6,275.66/9,411.84 = 2,982.20/x
  3. Step 3: Cross multiply
    6,275.66x = 9,411.84 × 2,982.20
  4. Step 4: Simplify right side
    6,275.66x = 28,067,989.25
  5. Step 5: Solve for x
    x = 28,067,989.25/6,275.66
  6. Step 6: Final answer
    x = 4,472.52

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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.