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Finding the Fourth Proportional to 33,188.79, 45,797.49 and 19,763.31

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Solution

The fourth proportional to 33,188.79, 45,797.49 and 19,763.31 is: 27,271.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,188.79 : 45,797.49 = 19,763.31 : x
  2. Step 2: Convert to fraction form
    33,188.79/45,797.49 = 19,763.31/x
  3. Step 3: Cross multiply
    33,188.79x = 45,797.49 × 19,763.31
  4. Step 4: Simplify right side
    33,188.79x = 905,109,992.09
  5. Step 5: Solve for x
    x = 905,109,992.09/33,188.79
  6. Step 6: Final answer
    x = 27,271.56

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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.