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Finding the Fourth Proportional to 67,274.61, 100,911.91 and 27,788.32

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Solution

The fourth proportional to 67,274.61, 100,911.91 and 27,788.32 is: 41,682.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,274.61 : 100,911.91 = 27,788.32 : x
  2. Step 2: Convert to fraction form
    67,274.61/100,911.91 = 27,788.32/x
  3. Step 3: Cross multiply
    67,274.61x = 100,911.91 × 27,788.32
  4. Step 4: Simplify right side
    67,274.61x = 2,804,172,446.89
  5. Step 5: Solve for x
    x = 2,804,172,446.89/67,274.61
  6. Step 6: Final answer
    x = 41,682.48

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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.