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Finding the Fourth Proportional to 16,509.80, 24,767.70 and 5,413.40

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Solution

The fourth proportional to 16,509.80, 24,767.70 and 5,413.40 is: 8,121.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,509.80 : 24,767.70 = 5,413.40 : x
  2. Step 2: Convert to fraction form
    16,509.80/24,767.70 = 5,413.40/x
  3. Step 3: Cross multiply
    16,509.80x = 24,767.70 × 5,413.40
  4. Step 4: Simplify right side
    16,509.80x = 134,077,467.18
  5. Step 5: Solve for x
    x = 134,077,467.18/16,509.80
  6. Step 6: Final answer
    x = 8,121.08

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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.