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Finding the Fourth Proportional to 65,500.51, 98,180.68 and 33,878.73

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Solution

The fourth proportional to 65,500.51, 98,180.68 and 33,878.73 is: 50,781.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,500.51 : 98,180.68 = 33,878.73 : x
  2. Step 2: Convert to fraction form
    65,500.51/98,180.68 = 33,878.73/x
  3. Step 3: Cross multiply
    65,500.51x = 98,180.68 × 33,878.73
  4. Step 4: Simplify right side
    65,500.51x = 3,326,236,915.09
  5. Step 5: Solve for x
    x = 3,326,236,915.09/65,500.51
  6. Step 6: Final answer
    x = 50,781.85

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1.5x scale

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.