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Finding the Fourth Proportional to 16,413.28, 24,619.92 and 7,654.32

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Solution

The fourth proportional to 16,413.28, 24,619.92 and 7,654.32 is: 11,481.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,413.28 : 24,619.92 = 7,654.32 : x
  2. Step 2: Convert to fraction form
    16,413.28/24,619.92 = 7,654.32/x
  3. Step 3: Cross multiply
    16,413.28x = 24,619.92 × 7,654.32
  4. Step 4: Simplify right side
    16,413.28x = 188,448,746.05
  5. Step 5: Solve for x
    x = 188,448,746.05/16,413.28
  6. Step 6: Final answer
    x = 11,481.48

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Similar ratio
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1.5x scale

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.