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Finding the Fourth Proportional to 49,987.20, 68,994 and 32,994.48

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Solution

The fourth proportional to 49,987.20, 68,994 and 32,994.48 is: 45,540.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,987.20 : 68,994 = 32,994.48 : x
  2. Step 2: Convert to fraction form
    49,987.20/68,994 = 32,994.48/x
  3. Step 3: Cross multiply
    49,987.20x = 68,994 × 32,994.48
  4. Step 4: Simplify right side
    49,987.20x = 2,276,421,153.12
  5. Step 5: Solve for x
    x = 2,276,421,153.12/49,987.20
  6. Step 6: Final answer
    x = 45,540.08

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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.