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Finding the Fourth Proportional to 27,187.80, 38,101.80 and 27,187.80

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Solution

The fourth proportional to 27,187.80, 38,101.80 and 27,187.80 is: 38,101.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,187.80 : 38,101.80 = 27,187.80 : x
  2. Step 2: Convert to fraction form
    27,187.80/38,101.80 = 27,187.80/x
  3. Step 3: Cross multiply
    27,187.80x = 38,101.80 × 27,187.80
  4. Step 4: Simplify right side
    27,187.80x = 1,035,904,118.04
  5. Step 5: Solve for x
    x = 1,035,904,118.04/27,187.80
  6. Step 6: Final answer
    x = 38,101.80

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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.