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Finding the Fourth Proportional to 22,759.60, 34,139.40 and 11,662.60

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Solution

The fourth proportional to 22,759.60, 34,139.40 and 11,662.60 is: 17,493.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,759.60 : 34,139.40 = 11,662.60 : x
  2. Step 2: Convert to fraction form
    22,759.60/34,139.40 = 11,662.60/x
  3. Step 3: Cross multiply
    22,759.60x = 34,139.40 × 11,662.60
  4. Step 4: Simplify right side
    22,759.60x = 398,154,166.44
  5. Step 5: Solve for x
    x = 398,154,166.44/22,759.60
  6. Step 6: Final answer
    x = 17,493.90

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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.