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Finding the Fourth Proportional to 26,558.80, 39,838.20 and 22,865.20

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Solution

The fourth proportional to 26,558.80, 39,838.20 and 22,865.20 is: 34,297.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,558.80 : 39,838.20 = 22,865.20 : x
  2. Step 2: Convert to fraction form
    26,558.80/39,838.20 = 22,865.20/x
  3. Step 3: Cross multiply
    26,558.80x = 39,838.20 × 22,865.20
  4. Step 4: Simplify right side
    26,558.80x = 910,908,410.64
  5. Step 5: Solve for x
    x = 910,908,410.64/26,558.80
  6. Step 6: Final answer
    x = 34,297.80

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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.