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Finding the Fourth Proportional to 41,205.65, 61,788.03 and 13,122.05

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Solution

The fourth proportional to 41,205.65, 61,788.03 and 13,122.05 is: 19,676.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,205.65 : 61,788.03 = 13,122.05 : x
  2. Step 2: Convert to fraction form
    41,205.65/61,788.03 = 13,122.05/x
  3. Step 3: Cross multiply
    41,205.65x = 61,788.03 × 13,122.05
  4. Step 4: Simplify right side
    41,205.65x = 810,785,244.51
  5. Step 5: Solve for x
    x = 810,785,244.51/41,205.65
  6. Step 6: Final answer
    x = 19,676.55

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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.