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Finding the Fourth Proportional to 5,663.38, 7,815.15 and 3,273.28

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Solution

The fourth proportional to 5,663.38, 7,815.15 and 3,273.28 is: 4,516.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,663.38 : 7,815.15 = 3,273.28 : x
  2. Step 2: Convert to fraction form
    5,663.38/7,815.15 = 3,273.28/x
  3. Step 3: Cross multiply
    5,663.38x = 7,815.15 × 3,273.28
  4. Step 4: Simplify right side
    5,663.38x = 25,581,135.12
  5. Step 5: Solve for x
    x = 25,581,135.12/5,663.38
  6. Step 6: Final answer
    x = 4,516.94

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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.