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Finding the Fourth Proportional to 73,987.40, 110,981.10 and 27,234.20

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Solution

The fourth proportional to 73,987.40, 110,981.10 and 27,234.20 is: 40,851.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,987.40 : 110,981.10 = 27,234.20 : x
  2. Step 2: Convert to fraction form
    73,987.40/110,981.10 = 27,234.20/x
  3. Step 3: Cross multiply
    73,987.40x = 110,981.10 × 27,234.20
  4. Step 4: Simplify right side
    73,987.40x = 3,022,481,473.62
  5. Step 5: Solve for x
    x = 3,022,481,473.62/73,987.40
  6. Step 6: Final answer
    x = 40,851.30

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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.