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Finding the Fourth Proportional to 35,876.79, 53,817.21 and 10,917.65

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Solution

The fourth proportional to 35,876.79, 53,817.21 and 10,917.65 is: 16,377.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,876.79 : 53,817.21 = 10,917.65 : x
  2. Step 2: Convert to fraction form
    35,876.79/53,817.21 = 10,917.65/x
  3. Step 3: Cross multiply
    35,876.79x = 53,817.21 × 10,917.65
  4. Step 4: Simplify right side
    35,876.79x = 587,557,408.17
  5. Step 5: Solve for x
    x = 587,557,408.17/35,876.79
  6. Step 6: Final answer
    x = 16,377.09

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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.