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Finding the Fourth Proportional to 48,644.40, 72,909.90 and 22,351.80

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Solution

The fourth proportional to 48,644.40, 72,909.90 and 22,351.80 is: 33,501.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,644.40 : 72,909.90 = 22,351.80 : x
  2. Step 2: Convert to fraction form
    48,644.40/72,909.90 = 22,351.80/x
  3. Step 3: Cross multiply
    48,644.40x = 72,909.90 × 22,351.80
  4. Step 4: Simplify right side
    48,644.40x = 1,629,667,502.82
  5. Step 5: Solve for x
    x = 1,629,667,502.82/48,644.40
  6. Step 6: Final answer
    x = 33,501.65

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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.