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Finding the Fourth Proportional to 49,563, 68,396.13 and 28,341.54

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Solution

The fourth proportional to 49,563, 68,396.13 and 28,341.54 is: 39,110.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,563 : 68,396.13 = 28,341.54 : x
  2. Step 2: Convert to fraction form
    49,563/68,396.13 = 28,341.54/x
  3. Step 3: Cross multiply
    49,563x = 68,396.13 × 28,341.54
  4. Step 4: Simplify right side
    49,563x = 1,938,451,654.24
  5. Step 5: Solve for x
    x = 1,938,451,654.24/49,563
  6. Step 6: Final answer
    x = 39,110.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.