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Finding the Fourth Proportional to 8,963.50, 13,445.25 and 4,269.28

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Solution

The fourth proportional to 8,963.50, 13,445.25 and 4,269.28 is: 6,403.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,963.50 : 13,445.25 = 4,269.28 : x
  2. Step 2: Convert to fraction form
    8,963.50/13,445.25 = 4,269.28/x
  3. Step 3: Cross multiply
    8,963.50x = 13,445.25 × 4,269.28
  4. Step 4: Simplify right side
    8,963.50x = 57,401,536.92
  5. Step 5: Solve for x
    x = 57,401,536.92/8,963.50
  6. Step 6: Final answer
    x = 6,403.92

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Similar ratio
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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.