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Finding the Fourth Proportional to 26,110.40, 39,165.60 and 25,721.60

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Solution

The fourth proportional to 26,110.40, 39,165.60 and 25,721.60 is: 38,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,110.40 : 39,165.60 = 25,721.60 : x
  2. Step 2: Convert to fraction form
    26,110.40/39,165.60 = 25,721.60/x
  3. Step 3: Cross multiply
    26,110.40x = 39,165.60 × 25,721.60
  4. Step 4: Simplify right side
    26,110.40x = 1,007,401,896.96
  5. Step 5: Solve for x
    x = 1,007,401,896.96/26,110.40
  6. Step 6: Final answer
    x = 38,582.40

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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.