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Finding the Fourth Proportional to 17,893.20, 26,839.80 and 6,207.60

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Solution

The fourth proportional to 17,893.20, 26,839.80 and 6,207.60 is: 9,311.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,893.20 : 26,839.80 = 6,207.60 : x
  2. Step 2: Convert to fraction form
    17,893.20/26,839.80 = 6,207.60/x
  3. Step 3: Cross multiply
    17,893.20x = 26,839.80 × 6,207.60
  4. Step 4: Simplify right side
    17,893.20x = 166,610,742.48
  5. Step 5: Solve for x
    x = 166,610,742.48/17,893.20
  6. Step 6: Final answer
    x = 9,311.40

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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.