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Finding the Fourth Proportional to 17,976.60, 26,965.70 and 6,130.20

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Solution

The fourth proportional to 17,976.60, 26,965.70 and 6,130.20 is: 9,195.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,976.60 : 26,965.70 = 6,130.20 : x
  2. Step 2: Convert to fraction form
    17,976.60/26,965.70 = 6,130.20/x
  3. Step 3: Cross multiply
    17,976.60x = 26,965.70 × 6,130.20
  4. Step 4: Simplify right side
    17,976.60x = 165,305,134.14
  5. Step 5: Solve for x
    x = 165,305,134.14/17,976.60
  6. Step 6: Final answer
    x = 9,195.57

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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.