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Finding the Fourth Proportional to 22,005.70, 33,008.55 and 20,104.90

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Solution

The fourth proportional to 22,005.70, 33,008.55 and 20,104.90 is: 30,157.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,005.70 : 33,008.55 = 20,104.90 : x
  2. Step 2: Convert to fraction form
    22,005.70/33,008.55 = 20,104.90/x
  3. Step 3: Cross multiply
    22,005.70x = 33,008.55 × 20,104.90
  4. Step 4: Simplify right side
    22,005.70x = 663,633,596.90
  5. Step 5: Solve for x
    x = 663,633,596.90/22,005.70
  6. Step 6: Final answer
    x = 30,157.35

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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.