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Finding the Fourth Proportional to 33,972.80, 50,930.16 and 12,901.04

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Solution

The fourth proportional to 33,972.80, 50,930.16 and 12,901.04 is: 19,340.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,972.80 : 50,930.16 = 12,901.04 : x
  2. Step 2: Convert to fraction form
    33,972.80/50,930.16 = 12,901.04/x
  3. Step 3: Cross multiply
    33,972.80x = 50,930.16 × 12,901.04
  4. Step 4: Simplify right side
    33,972.80x = 657,052,031.37
  5. Step 5: Solve for x
    x = 657,052,031.37/33,972.80
  6. Step 6: Final answer
    x = 19,340.53

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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.