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Finding the Fourth Proportional to 27,400.80, 38,448.60 and 27,400.80

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Solution

The fourth proportional to 27,400.80, 38,448.60 and 27,400.80 is: 38,448.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,400.80 : 38,448.60 = 27,400.80 : x
  2. Step 2: Convert to fraction form
    27,400.80/38,448.60 = 27,400.80/x
  3. Step 3: Cross multiply
    27,400.80x = 38,448.60 × 27,400.80
  4. Step 4: Simplify right side
    27,400.80x = 1,053,522,398.88
  5. Step 5: Solve for x
    x = 1,053,522,398.88/27,400.80
  6. Step 6: Final answer
    x = 38,448.60

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.