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Finding the Fourth Proportional to 65,917.62, 98,878.86 and 33,888.12

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Solution

The fourth proportional to 65,917.62, 98,878.86 and 33,888.12 is: 50,833.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,917.62 : 98,878.86 = 33,888.12 : x
  2. Step 2: Convert to fraction form
    65,917.62/98,878.86 = 33,888.12/x
  3. Step 3: Cross multiply
    65,917.62x = 98,878.86 × 33,888.12
  4. Step 4: Simplify right side
    65,917.62x = 3,350,818,673.14
  5. Step 5: Solve for x
    x = 3,350,818,673.14/65,917.62
  6. Step 6: Final answer
    x = 50,833.43

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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.