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Finding the Fourth Proportional to 48,940.40, 73,429.80 and 17,778.80

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Solution

The fourth proportional to 48,940.40, 73,429.80 and 17,778.80 is: 26,675.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,940.40 : 73,429.80 = 17,778.80 : x
  2. Step 2: Convert to fraction form
    48,940.40/73,429.80 = 17,778.80/x
  3. Step 3: Cross multiply
    48,940.40x = 73,429.80 × 17,778.80
  4. Step 4: Simplify right side
    48,940.40x = 1,305,493,728.24
  5. Step 5: Solve for x
    x = 1,305,493,728.24/48,940.40
  6. Step 6: Final answer
    x = 26,675.17

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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.