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Finding the Fourth Proportional to 26,588.80, 39,883.34 and 6,865.99

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Solution

The fourth proportional to 26,588.80, 39,883.34 and 6,865.99 is: 10,299.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,588.80 : 39,883.34 = 6,865.99 : x
  2. Step 2: Convert to fraction form
    26,588.80/39,883.34 = 6,865.99/x
  3. Step 3: Cross multiply
    26,588.80x = 39,883.34 × 6,865.99
  4. Step 4: Simplify right side
    26,588.80x = 273,838,613.61
  5. Step 5: Solve for x
    x = 273,838,613.61/26,588.80
  6. Step 6: Final answer
    x = 10,299.02

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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.