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Finding the Fourth Proportional to 22,108.20, 33,113.70 and 19,192.20

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Solution

The fourth proportional to 22,108.20, 33,113.70 and 19,192.20 is: 28,746.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,108.20 : 33,113.70 = 19,192.20 : x
  2. Step 2: Convert to fraction form
    22,108.20/33,113.70 = 19,192.20/x
  3. Step 3: Cross multiply
    22,108.20x = 33,113.70 × 19,192.20
  4. Step 4: Simplify right side
    22,108.20x = 635,524,753.14
  5. Step 5: Solve for x
    x = 635,524,753.14/22,108.20
  6. Step 6: Final answer
    x = 28,746.11

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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.