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Finding the Fourth Proportional to 25,588.80, 38,383.20 and 25,243.20

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Solution

The fourth proportional to 25,588.80, 38,383.20 and 25,243.20 is: 37,864.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,588.80 : 38,383.20 = 25,243.20 : x
  2. Step 2: Convert to fraction form
    25,588.80/38,383.20 = 25,243.20/x
  3. Step 3: Cross multiply
    25,588.80x = 38,383.20 × 25,243.20
  4. Step 4: Simplify right side
    25,588.80x = 968,914,794.24
  5. Step 5: Solve for x
    x = 968,914,794.24/25,588.80
  6. Step 6: Final answer
    x = 37,864.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.