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Finding the Fourth Proportional to 22,801.60, 34,202.12 and 7,219.20

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Solution

The fourth proportional to 22,801.60, 34,202.12 and 7,219.20 is: 10,828.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,801.60 : 34,202.12 = 7,219.20 : x
  2. Step 2: Convert to fraction form
    22,801.60/34,202.12 = 7,219.20/x
  3. Step 3: Cross multiply
    22,801.60x = 34,202.12 × 7,219.20
  4. Step 4: Simplify right side
    22,801.60x = 246,911,944.70
  5. Step 5: Solve for x
    x = 246,911,944.70/22,801.60
  6. Step 6: Final answer
    x = 10,828.71

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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.