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Finding the Fourth Proportional to 17,977.60, 26,967.20 and 6,131.20

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Solution

The fourth proportional to 17,977.60, 26,967.20 and 6,131.20 is: 9,197.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,977.60 : 26,967.20 = 6,131.20 : x
  2. Step 2: Convert to fraction form
    17,977.60/26,967.20 = 6,131.20/x
  3. Step 3: Cross multiply
    17,977.60x = 26,967.20 × 6,131.20
  4. Step 4: Simplify right side
    17,977.60x = 165,341,296.64
  5. Step 5: Solve for x
    x = 165,341,296.64/17,977.60
  6. Step 6: Final answer
    x = 9,197.07

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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.