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Finding the Fourth Proportional to 48,786.93, 67,370.81 and 39,228.39

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Solution

The fourth proportional to 48,786.93, 67,370.81 and 39,228.39 is: 54,171.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,786.93 : 67,370.81 = 39,228.39 : x
  2. Step 2: Convert to fraction form
    48,786.93/67,370.81 = 39,228.39/x
  3. Step 3: Cross multiply
    48,786.93x = 67,370.81 × 39,228.39
  4. Step 4: Simplify right side
    48,786.93x = 2,642,848,213.15
  5. Step 5: Solve for x
    x = 2,642,848,213.15/48,786.93
  6. Step 6: Final answer
    x = 54,171.23

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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.