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Finding the Fourth Proportional to 22,295.40, 33,443.10 and 20,108.40

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Solution

The fourth proportional to 22,295.40, 33,443.10 and 20,108.40 is: 30,162.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,295.40 : 33,443.10 = 20,108.40 : x
  2. Step 2: Convert to fraction form
    22,295.40/33,443.10 = 20,108.40/x
  3. Step 3: Cross multiply
    22,295.40x = 33,443.10 × 20,108.40
  4. Step 4: Simplify right side
    22,295.40x = 672,487,232.04
  5. Step 5: Solve for x
    x = 672,487,232.04/22,295.40
  6. Step 6: Final answer
    x = 30,162.60

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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.