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Finding the Fourth Proportional to 61,283.76, 91,934.28 and 21,832.44

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Solution

The fourth proportional to 61,283.76, 91,934.28 and 21,832.44 is: 32,751.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,283.76 : 91,934.28 = 21,832.44 : x
  2. Step 2: Convert to fraction form
    61,283.76/91,934.28 = 21,832.44/x
  3. Step 3: Cross multiply
    61,283.76x = 91,934.28 × 21,832.44
  4. Step 4: Simplify right side
    61,283.76x = 2,007,149,652.04
  5. Step 5: Solve for x
    x = 2,007,149,652.04/61,283.76
  6. Step 6: Final answer
    x = 32,751.74

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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.