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Finding the Fourth Proportional to 6,631.20, 9,200.64 and 6,574.68

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Solution

The fourth proportional to 6,631.20, 9,200.64 and 6,574.68 is: 9,122.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.20 : 9,200.64 = 6,574.68 : x
  2. Step 2: Convert to fraction form
    6,631.20/9,200.64 = 6,574.68/x
  3. Step 3: Cross multiply
    6,631.20x = 9,200.64 × 6,574.68
  4. Step 4: Simplify right side
    6,631.20x = 60,491,263.80
  5. Step 5: Solve for x
    x = 60,491,263.80/6,631.20
  6. Step 6: Final answer
    x = 9,122.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.