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Finding the Fourth Proportional to 49,290.80, 73,921.80 and 17,697.20

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Solution

The fourth proportional to 49,290.80, 73,921.80 and 17,697.20 is: 26,540.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,290.80 : 73,921.80 = 17,697.20 : x
  2. Step 2: Convert to fraction form
    49,290.80/73,921.80 = 17,697.20/x
  3. Step 3: Cross multiply
    49,290.80x = 73,921.80 × 17,697.20
  4. Step 4: Simplify right side
    49,290.80x = 1,308,208,878.96
  5. Step 5: Solve for x
    x = 1,308,208,878.96/49,290.80
  6. Step 6: Final answer
    x = 26,540.63

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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.