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Finding the Fourth Proportional to 45,872.80, 68,744.40 and 32,005.60

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Solution

The fourth proportional to 45,872.80, 68,744.40 and 32,005.60 is: 47,963.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,872.80 : 68,744.40 = 32,005.60 : x
  2. Step 2: Convert to fraction form
    45,872.80/68,744.40 = 32,005.60/x
  3. Step 3: Cross multiply
    45,872.80x = 68,744.40 × 32,005.60
  4. Step 4: Simplify right side
    45,872.80x = 2,200,205,768.64
  5. Step 5: Solve for x
    x = 2,200,205,768.64/45,872.80
  6. Step 6: Final answer
    x = 47,963.19

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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.