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Finding the Fourth Proportional to 8,876.57, 13,307.10 and 3,328.43

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Solution

The fourth proportional to 8,876.57, 13,307.10 and 3,328.43 is: 4,989.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,876.57 : 13,307.10 = 3,328.43 : x
  2. Step 2: Convert to fraction form
    8,876.57/13,307.10 = 3,328.43/x
  3. Step 3: Cross multiply
    8,876.57x = 13,307.10 × 3,328.43
  4. Step 4: Simplify right side
    8,876.57x = 44,291,684.32
  5. Step 5: Solve for x
    x = 44,291,684.32/8,876.57
  6. Step 6: Final answer
    x = 4,989.73

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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.