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Finding the Fourth Proportional to 8,859.60, 13,272.38 and 4,952.16

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Solution

The fourth proportional to 8,859.60, 13,272.38 and 4,952.16 is: 7,418.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.60 : 13,272.38 = 4,952.16 : x
  2. Step 2: Convert to fraction form
    8,859.60/13,272.38 = 4,952.16/x
  3. Step 3: Cross multiply
    8,859.60x = 13,272.38 × 4,952.16
  4. Step 4: Simplify right side
    8,859.60x = 65,726,949.34
  5. Step 5: Solve for x
    x = 65,726,949.34/8,859.60
  6. Step 6: Final answer
    x = 7,418.73

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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.