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Finding the Fourth Proportional to 41,878.03, 62,803.52 and 13,791.40

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Solution

The fourth proportional to 41,878.03, 62,803.52 and 13,791.40 is: 20,682.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,878.03 : 62,803.52 = 13,791.40 : x
  2. Step 2: Convert to fraction form
    41,878.03/62,803.52 = 13,791.40/x
  3. Step 3: Cross multiply
    41,878.03x = 62,803.52 × 13,791.40
  4. Step 4: Simplify right side
    41,878.03x = 866,148,465.73
  5. Step 5: Solve for x
    x = 866,148,465.73/41,878.03
  6. Step 6: Final answer
    x = 20,682.65

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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.