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Finding the Fourth Proportional to 8,805.78, 13,207.98 and 3,256.53

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Solution

The fourth proportional to 8,805.78, 13,207.98 and 3,256.53 is: 4,884.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805.78 : 13,207.98 = 3,256.53 : x
  2. Step 2: Convert to fraction form
    8,805.78/13,207.98 = 3,256.53/x
  3. Step 3: Cross multiply
    8,805.78x = 13,207.98 × 3,256.53
  4. Step 4: Simplify right side
    8,805.78x = 43,012,183.11
  5. Step 5: Solve for x
    x = 43,012,183.11/8,805.78
  6. Step 6: Final answer
    x = 4,884.54

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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.