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Finding the Fourth Proportional to 5,574.24, 7,691.28 and 3,216.24

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Solution

The fourth proportional to 5,574.24, 7,691.28 and 3,216.24 is: 4,437.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,574.24 : 7,691.28 = 3,216.24 : x
  2. Step 2: Convert to fraction form
    5,574.24/7,691.28 = 3,216.24/x
  3. Step 3: Cross multiply
    5,574.24x = 7,691.28 × 3,216.24
  4. Step 4: Simplify right side
    5,574.24x = 24,737,002.39
  5. Step 5: Solve for x
    x = 24,737,002.39/5,574.24
  6. Step 6: Final answer
    x = 4,437.74

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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.