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Finding the Fourth Proportional to 22,108.30, 33,118.02 and 10,981.32

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Solution

The fourth proportional to 22,108.30, 33,118.02 and 10,981.32 is: 16,449.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,108.30 : 33,118.02 = 10,981.32 : x
  2. Step 2: Convert to fraction form
    22,108.30/33,118.02 = 10,981.32/x
  3. Step 3: Cross multiply
    22,108.30x = 33,118.02 × 10,981.32
  4. Step 4: Simplify right side
    22,108.30x = 363,679,575.39
  5. Step 5: Solve for x
    x = 363,679,575.39/22,108.30
  6. Step 6: Final answer
    x = 16,449.91

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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.