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Finding the Fourth Proportional to 8,630.25, 12,945.42 and 2,474.25

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Solution

The fourth proportional to 8,630.25, 12,945.42 and 2,474.25 is: 3,711.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.25 : 12,945.42 = 2,474.25 : x
  2. Step 2: Convert to fraction form
    8,630.25/12,945.42 = 2,474.25/x
  3. Step 3: Cross multiply
    8,630.25x = 12,945.42 × 2,474.25
  4. Step 4: Simplify right side
    8,630.25x = 32,030,205.44
  5. Step 5: Solve for x
    x = 32,030,205.44/8,630.25
  6. Step 6: Final answer
    x = 3,711.39

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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.