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Finding the Fourth Proportional to 49,563, 68,388.12 and 28,052.64

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Solution

The fourth proportional to 49,563, 68,388.12 and 28,052.64 is: 38,707.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,563 : 68,388.12 = 28,052.64 : x
  2. Step 2: Convert to fraction form
    49,563/68,388.12 = 28,052.64/x
  3. Step 3: Cross multiply
    49,563x = 68,388.12 × 28,052.64
  4. Step 4: Simplify right side
    49,563x = 1,918,467,310.64
  5. Step 5: Solve for x
    x = 1,918,467,310.64/49,563
  6. Step 6: Final answer
    x = 38,707.65

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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.