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Finding the Fourth Proportional to 33,367.20, 49,921.20 and 21,703.20

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Solution

The fourth proportional to 33,367.20, 49,921.20 and 21,703.20 is: 32,470.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,367.20 : 49,921.20 = 21,703.20 : x
  2. Step 2: Convert to fraction form
    33,367.20/49,921.20 = 21,703.20/x
  3. Step 3: Cross multiply
    33,367.20x = 49,921.20 × 21,703.20
  4. Step 4: Simplify right side
    33,367.20x = 1,083,449,787.84
  5. Step 5: Solve for x
    x = 1,083,449,787.84/33,367.20
  6. Step 6: Final answer
    x = 32,470.50

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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.