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Finding the Fourth Proportional to 11,550.16, 15,943.52 and 8,992.84

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Solution

The fourth proportional to 11,550.16, 15,943.52 and 8,992.84 is: 12,413.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,550.16 : 15,943.52 = 8,992.84 : x
  2. Step 2: Convert to fraction form
    11,550.16/15,943.52 = 8,992.84/x
  3. Step 3: Cross multiply
    11,550.16x = 15,943.52 × 8,992.84
  4. Step 4: Simplify right side
    11,550.16x = 143,377,399.72
  5. Step 5: Solve for x
    x = 143,377,399.72/11,550.16
  6. Step 6: Final answer
    x = 12,413.46

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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.