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Finding the Fourth Proportional to 6,363.24, 8,781.25 and 3,531.05

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Solution

The fourth proportional to 6,363.24, 8,781.25 and 3,531.05 is: 4,872.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,363.24 : 8,781.25 = 3,531.05 : x
  2. Step 2: Convert to fraction form
    6,363.24/8,781.25 = 3,531.05/x
  3. Step 3: Cross multiply
    6,363.24x = 8,781.25 × 3,531.05
  4. Step 4: Simplify right side
    6,363.24x = 31,006,971.25
  5. Step 5: Solve for x
    x = 31,006,971.25/6,363.24
  6. Step 6: Final answer
    x = 4,872.83

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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.