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Finding the Fourth Proportional to 6,363.15, 8,781.16 and 3,530.53

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Solution

The fourth proportional to 6,363.15, 8,781.16 and 3,530.53 is: 4,872.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,363.15 : 8,781.16 = 3,530.53 : x
  2. Step 2: Convert to fraction form
    6,363.15/8,781.16 = 3,530.53/x
  3. Step 3: Cross multiply
    6,363.15x = 8,781.16 × 3,530.53
  4. Step 4: Simplify right side
    6,363.15x = 31,002,148.81
  5. Step 5: Solve for x
    x = 31,002,148.81/6,363.15
  6. Step 6: Final answer
    x = 4,872.14

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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.