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Finding the Fourth Proportional to 27,080.40, 40,620.60 and 26,691.60

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Solution

The fourth proportional to 27,080.40, 40,620.60 and 26,691.60 is: 40,037.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,080.40 : 40,620.60 = 26,691.60 : x
  2. Step 2: Convert to fraction form
    27,080.40/40,620.60 = 26,691.60/x
  3. Step 3: Cross multiply
    27,080.40x = 40,620.60 × 26,691.60
  4. Step 4: Simplify right side
    27,080.40x = 1,084,228,806.96
  5. Step 5: Solve for x
    x = 1,084,228,806.96/27,080.40
  6. Step 6: Final answer
    x = 40,037.40

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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.