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Finding the Fourth Proportional to 26,507.66, 39,766.36 and 8,739.36

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Solution

The fourth proportional to 26,507.66, 39,766.36 and 8,739.36 is: 13,110.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,507.66 : 39,766.36 = 8,739.36 : x
  2. Step 2: Convert to fraction form
    26,507.66/39,766.36 = 8,739.36/x
  3. Step 3: Cross multiply
    26,507.66x = 39,766.36 × 8,739.36
  4. Step 4: Simplify right side
    26,507.66x = 347,532,535.93
  5. Step 5: Solve for x
    x = 347,532,535.93/26,507.66
  6. Step 6: Final answer
    x = 13,110.65

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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.