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Finding the Fourth Proportional to 43,392.74, 65,149.32 and 22,347.80

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Solution

The fourth proportional to 43,392.74, 65,149.32 and 22,347.80 is: 33,552.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,392.74 : 65,149.32 = 22,347.80 : x
  2. Step 2: Convert to fraction form
    43,392.74/65,149.32 = 22,347.80/x
  3. Step 3: Cross multiply
    43,392.74x = 65,149.32 × 22,347.80
  4. Step 4: Simplify right side
    43,392.74x = 1,455,943,647.75
  5. Step 5: Solve for x
    x = 1,455,943,647.75/43,392.74
  6. Step 6: Final answer
    x = 33,552.71

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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.