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Finding the Fourth Proportional to 22,972.03, 31,602.97 and 21,987.88

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Solution

The fourth proportional to 22,972.03, 31,602.97 and 21,987.88 is: 30,249.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,972.03 : 31,602.97 = 21,987.88 : x
  2. Step 2: Convert to fraction form
    22,972.03/31,602.97 = 21,987.88/x
  3. Step 3: Cross multiply
    22,972.03x = 31,602.97 × 21,987.88
  4. Step 4: Simplify right side
    22,972.03x = 694,882,153.99
  5. Step 5: Solve for x
    x = 694,882,153.99/22,972.03
  6. Step 6: Final answer
    x = 30,249.06

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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.