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Finding the Fourth Proportional to 22,987.99, 34,469.47 and 7,186.20

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Solution

The fourth proportional to 22,987.99, 34,469.47 and 7,186.20 is: 10,775.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,987.99 : 34,469.47 = 7,186.20 : x
  2. Step 2: Convert to fraction form
    22,987.99/34,469.47 = 7,186.20/x
  3. Step 3: Cross multiply
    22,987.99x = 34,469.47 × 7,186.20
  4. Step 4: Simplify right side
    22,987.99x = 247,704,487.35
  5. Step 5: Solve for x
    x = 247,704,487.35/22,987.99
  6. Step 6: Final answer
    x = 10,775.39

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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.