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Finding the Fourth Proportional to 17,786.20, 24,545.03 and 9,720.01

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Solution

The fourth proportional to 17,786.20, 24,545.03 and 9,720.01 is: 13,413.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,786.20 : 24,545.03 = 9,720.01 : x
  2. Step 2: Convert to fraction form
    17,786.20/24,545.03 = 9,720.01/x
  3. Step 3: Cross multiply
    17,786.20x = 24,545.03 × 9,720.01
  4. Step 4: Simplify right side
    17,786.20x = 238,577,888.45
  5. Step 5: Solve for x
    x = 238,577,888.45/17,786.20
  6. Step 6: Final answer
    x = 13,413.66

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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.