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Finding the Fourth Proportional to 52,860.72, 79,255.71 and 27,874.38

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Solution

The fourth proportional to 52,860.72, 79,255.71 and 27,874.38 is: 41,792.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,860.72 : 79,255.71 = 27,874.38 : x
  2. Step 2: Convert to fraction form
    52,860.72/79,255.71 = 27,874.38/x
  3. Step 3: Cross multiply
    52,860.72x = 79,255.71 × 27,874.38
  4. Step 4: Simplify right side
    52,860.72x = 2,209,203,777.71
  5. Step 5: Solve for x
    x = 2,209,203,777.71/52,860.72
  6. Step 6: Final answer
    x = 41,792.92

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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.