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Finding the Fourth Proportional to 6,662.44, 9,993.68 and 1,731.76

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Solution

The fourth proportional to 6,662.44, 9,993.68 and 1,731.76 is: 2,597.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,662.44 : 9,993.68 = 1,731.76 : x
  2. Step 2: Convert to fraction form
    6,662.44/9,993.68 = 1,731.76/x
  3. Step 3: Cross multiply
    6,662.44x = 9,993.68 × 1,731.76
  4. Step 4: Simplify right side
    6,662.44x = 17,306,655.28
  5. Step 5: Solve for x
    x = 17,306,655.28/6,662.44
  6. Step 6: Final answer
    x = 2,597.65

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Double scale
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Similar ratio
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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.