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Finding the Fourth Proportional to 5,671.68, 8,502.48 and 2,208.12

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Solution

The fourth proportional to 5,671.68, 8,502.48 and 2,208.12 is: 3,310.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,671.68 : 8,502.48 = 2,208.12 : x
  2. Step 2: Convert to fraction form
    5,671.68/8,502.48 = 2,208.12/x
  3. Step 3: Cross multiply
    5,671.68x = 8,502.48 × 2,208.12
  4. Step 4: Simplify right side
    5,671.68x = 18,774,496.14
  5. Step 5: Solve for x
    x = 18,774,496.14/5,671.68
  6. Step 6: Final answer
    x = 3,310.22

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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.