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Finding the Fourth Proportional to 5,672.16, 8,508.96 and 2,208.96

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Solution

The fourth proportional to 5,672.16, 8,508.96 and 2,208.96 is: 3,313.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,672.16 : 8,508.96 = 2,208.96 : x
  2. Step 2: Convert to fraction form
    5,672.16/8,508.96 = 2,208.96/x
  3. Step 3: Cross multiply
    5,672.16x = 8,508.96 × 2,208.96
  4. Step 4: Simplify right side
    5,672.16x = 18,795,952.28
  5. Step 5: Solve for x
    x = 18,795,952.28/5,672.16
  6. Step 6: Final answer
    x = 3,313.72

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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.