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Finding the Fourth Proportional to 83,243.50, 124,865.37 and 33,995.50

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Solution

The fourth proportional to 83,243.50, 124,865.37 and 33,995.50 is: 50,993.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,243.50 : 124,865.37 = 33,995.50 : x
  2. Step 2: Convert to fraction form
    83,243.50/124,865.37 = 33,995.50/x
  3. Step 3: Cross multiply
    83,243.50x = 124,865.37 × 33,995.50
  4. Step 4: Simplify right side
    83,243.50x = 4,244,860,685.84
  5. Step 5: Solve for x
    x = 4,244,860,685.84/83,243.50
  6. Step 6: Final answer
    x = 50,993.30

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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.