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Finding the Fourth Proportional to 48,706.80, 73,062.60 and 25,378.80

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Solution

The fourth proportional to 48,706.80, 73,062.60 and 25,378.80 is: 38,069.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,706.80 : 73,062.60 = 25,378.80 : x
  2. Step 2: Convert to fraction form
    48,706.80/73,062.60 = 25,378.80/x
  3. Step 3: Cross multiply
    48,706.80x = 73,062.60 × 25,378.80
  4. Step 4: Simplify right side
    48,706.80x = 1,854,241,112.88
  5. Step 5: Solve for x
    x = 1,854,241,112.88/48,706.80
  6. Step 6: Final answer
    x = 38,069.45

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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.