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Finding the Fourth Proportional to 65,979.93, 98,879.58 and 27,997.41

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Solution

The fourth proportional to 65,979.93, 98,879.58 and 27,997.41 is: 41,957.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,979.93 : 98,879.58 = 27,997.41 : x
  2. Step 2: Convert to fraction form
    65,979.93/98,879.58 = 27,997.41/x
  3. Step 3: Cross multiply
    65,979.93x = 98,879.58 × 27,997.41
  4. Step 4: Simplify right side
    65,979.93x = 2,768,372,141.89
  5. Step 5: Solve for x
    x = 2,768,372,141.89/65,979.93
  6. Step 6: Final answer
    x = 41,957.79

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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.