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Finding the Fourth Proportional to 70,015.73, 96,617.87 and 39,796.86

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Solution

The fourth proportional to 70,015.73, 96,617.87 and 39,796.86 is: 54,917.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,015.73 : 96,617.87 = 39,796.86 : x
  2. Step 2: Convert to fraction form
    70,015.73/96,617.87 = 39,796.86/x
  3. Step 3: Cross multiply
    70,015.73x = 96,617.87 × 39,796.86
  4. Step 4: Simplify right side
    70,015.73x = 3,845,087,845.89
  5. Step 5: Solve for x
    x = 3,845,087,845.89/70,015.73
  6. Step 6: Final answer
    x = 54,917.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.