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Finding the Fourth Proportional to 8,524.40, 12,772.20 and 5,601.20

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Solution

The fourth proportional to 8,524.40, 12,772.20 and 5,601.20 is: 8,392.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,524.40 : 12,772.20 = 5,601.20 : x
  2. Step 2: Convert to fraction form
    8,524.40/12,772.20 = 5,601.20/x
  3. Step 3: Cross multiply
    8,524.40x = 12,772.20 × 5,601.20
  4. Step 4: Simplify right side
    8,524.40x = 71,539,646.64
  5. Step 5: Solve for x
    x = 71,539,646.64/8,524.40
  6. Step 6: Final answer
    x = 8,392.34

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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.