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Finding the Fourth Proportional to 17,793.60, 26,690.40 and 11,232.60

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Solution

The fourth proportional to 17,793.60, 26,690.40 and 11,232.60 is: 16,848.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,793.60 : 26,690.40 = 11,232.60 : x
  2. Step 2: Convert to fraction form
    17,793.60/26,690.40 = 11,232.60/x
  3. Step 3: Cross multiply
    17,793.60x = 26,690.40 × 11,232.60
  4. Step 4: Simplify right side
    17,793.60x = 299,802,587.04
  5. Step 5: Solve for x
    x = 299,802,587.04/17,793.60
  6. Step 6: Final answer
    x = 16,848.90

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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.