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Finding the Fourth Proportional to 7,049.30, 9,772.55 and 6,674.78

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Solution

The fourth proportional to 7,049.30, 9,772.55 and 6,674.78 is: 9,253.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,049.30 : 9,772.55 = 6,674.78 : x
  2. Step 2: Convert to fraction form
    7,049.30/9,772.55 = 6,674.78/x
  3. Step 3: Cross multiply
    7,049.30x = 9,772.55 × 6,674.78
  4. Step 4: Simplify right side
    7,049.30x = 65,229,637.38
  5. Step 5: Solve for x
    x = 65,229,637.38/7,049.30
  6. Step 6: Final answer
    x = 9,253.36

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Half scale
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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.