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Finding the Fourth Proportional to 15,067.87, 20,792.28 and 8,693.00

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Solution

The fourth proportional to 15,067.87, 20,792.28 and 8,693.00 is: 11,995.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,067.87 : 20,792.28 = 8,693.00 : x
  2. Step 2: Convert to fraction form
    15,067.87/20,792.28 = 8,693.00/x
  3. Step 3: Cross multiply
    15,067.87x = 20,792.28 × 8,693.00
  4. Step 4: Simplify right side
    15,067.87x = 180,747,413.74
  5. Step 5: Solve for x
    x = 180,747,413.74/15,067.87
  6. Step 6: Final answer
    x = 11,995.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.