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Finding the Fourth Proportional to 33,672.70, 50,487.45 and 13,959.10

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Solution

The fourth proportional to 33,672.70, 50,487.45 and 13,959.10 is: 20,929.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,672.70 : 50,487.45 = 13,959.10 : x
  2. Step 2: Convert to fraction form
    33,672.70/50,487.45 = 13,959.10/x
  3. Step 3: Cross multiply
    33,672.70x = 50,487.45 × 13,959.10
  4. Step 4: Simplify right side
    33,672.70x = 704,759,363.30
  5. Step 5: Solve for x
    x = 704,759,363.30/33,672.70
  6. Step 6: Final answer
    x = 20,929.70

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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.