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Finding the Fourth Proportional to 26,447.16, 39,671.68 and 8,917.14

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Solution

The fourth proportional to 26,447.16, 39,671.68 and 8,917.14 is: 13,376.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,447.16 : 39,671.68 = 8,917.14 : x
  2. Step 2: Convert to fraction form
    26,447.16/39,671.68 = 8,917.14/x
  3. Step 3: Cross multiply
    26,447.16x = 39,671.68 × 8,917.14
  4. Step 4: Simplify right side
    26,447.16x = 353,757,924.60
  5. Step 5: Solve for x
    x = 353,757,924.60/26,447.16
  6. Step 6: Final answer
    x = 13,376.03

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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.