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Finding the Fourth Proportional to 86,035.25, 118,724.78 and 47,797.48

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Solution

The fourth proportional to 86,035.25, 118,724.78 and 47,797.48 is: 65,958.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,035.25 : 118,724.78 = 47,797.48 : x
  2. Step 2: Convert to fraction form
    86,035.25/118,724.78 = 47,797.48/x
  3. Step 3: Cross multiply
    86,035.25x = 118,724.78 × 47,797.48
  4. Step 4: Simplify right side
    86,035.25x = 5,674,745,297.55
  5. Step 5: Solve for x
    x = 5,674,745,297.55/86,035.25
  6. Step 6: Final answer
    x = 65,958.38

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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.