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Finding the Fourth Proportional to 3,718.70, 5,535.56 and 3,663.32

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Solution

The fourth proportional to 3,718.70, 5,535.56 and 3,663.32 is: 5,453.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.70 : 5,535.56 = 3,663.32 : x
  2. Step 2: Convert to fraction form
    3,718.70/5,535.56 = 3,663.32/x
  3. Step 3: Cross multiply
    3,718.70x = 5,535.56 × 3,663.32
  4. Step 4: Simplify right side
    3,718.70x = 20,278,527.66
  5. Step 5: Solve for x
    x = 20,278,527.66/3,718.70
  6. Step 6: Final answer
    x = 5,453.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.