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Finding the Fourth Proportional to 15,855.97, 23,781.90 and 5,993.97

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Solution

The fourth proportional to 15,855.97, 23,781.90 and 5,993.97 is: 8,990.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,855.97 : 23,781.90 = 5,993.97 : x
  2. Step 2: Convert to fraction form
    15,855.97/23,781.90 = 5,993.97/x
  3. Step 3: Cross multiply
    15,855.97x = 23,781.90 × 5,993.97
  4. Step 4: Simplify right side
    15,855.97x = 142,547,995.14
  5. Step 5: Solve for x
    x = 142,547,995.14/15,855.97
  6. Step 6: Final answer
    x = 8,990.18

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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.