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Finding the Fourth Proportional to 6,652.70, 9,180.79 and 3,668.64

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Solution

The fourth proportional to 6,652.70, 9,180.79 and 3,668.64 is: 5,062.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,652.70 : 9,180.79 = 3,668.64 : x
  2. Step 2: Convert to fraction form
    6,652.70/9,180.79 = 3,668.64/x
  3. Step 3: Cross multiply
    6,652.70x = 9,180.79 × 3,668.64
  4. Step 4: Simplify right side
    6,652.70x = 33,681,013.43
  5. Step 5: Solve for x
    x = 33,681,013.43/6,652.70
  6. Step 6: Final answer
    x = 5,062.76

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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.