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Finding the Fourth Proportional to 53,648.80, 80,441.20 and 32,887.20

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Solution

The fourth proportional to 53,648.80, 80,441.20 and 32,887.20 is: 49,311.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,648.80 : 80,441.20 = 32,887.20 : x
  2. Step 2: Convert to fraction form
    53,648.80/80,441.20 = 32,887.20/x
  3. Step 3: Cross multiply
    53,648.80x = 80,441.20 × 32,887.20
  4. Step 4: Simplify right side
    53,648.80x = 2,645,485,832.64
  5. Step 5: Solve for x
    x = 2,645,485,832.64/53,648.80
  6. Step 6: Final answer
    x = 49,311.18

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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.