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Finding the Fourth Proportional to 69,175.86, 103,767.52 and 21,794.68

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Solution

The fourth proportional to 69,175.86, 103,767.52 and 21,794.68 is: 32,693.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,175.86 : 103,767.52 = 21,794.68 : x
  2. Step 2: Convert to fraction form
    69,175.86/103,767.52 = 21,794.68/x
  3. Step 3: Cross multiply
    69,175.86x = 103,767.52 × 21,794.68
  4. Step 4: Simplify right side
    69,175.86x = 2,261,579,373.96
  5. Step 5: Solve for x
    x = 2,261,579,373.96/69,175.86
  6. Step 6: Final answer
    x = 32,693.19

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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.