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Finding the Fourth Proportional to 60,727.50, 91,091.25 and 19,174.50

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Solution

The fourth proportional to 60,727.50, 91,091.25 and 19,174.50 is: 28,761.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,727.50 : 91,091.25 = 19,174.50 : x
  2. Step 2: Convert to fraction form
    60,727.50/91,091.25 = 19,174.50/x
  3. Step 3: Cross multiply
    60,727.50x = 91,091.25 × 19,174.50
  4. Step 4: Simplify right side
    60,727.50x = 1,746,629,173.13
  5. Step 5: Solve for x
    x = 1,746,629,173.13/60,727.50
  6. Step 6: Final answer
    x = 28,761.75

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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.