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Finding the Fourth Proportional to 7,080.52, 10,620.78 and 3,182.19

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Solution

The fourth proportional to 7,080.52, 10,620.78 and 3,182.19 is: 4,773.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080.52 : 10,620.78 = 3,182.19 : x
  2. Step 2: Convert to fraction form
    7,080.52/10,620.78 = 3,182.19/x
  3. Step 3: Cross multiply
    7,080.52x = 10,620.78 × 3,182.19
  4. Step 4: Simplify right side
    7,080.52x = 33,797,324.00
  5. Step 5: Solve for x
    x = 33,797,324.00/7,080.52
  6. Step 6: Final answer
    x = 4,773.29

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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.