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Finding the Fourth Proportional to 33,161.66, 45,748.56 and 21,816.56

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Solution

The fourth proportional to 33,161.66, 45,748.56 and 21,816.56 is: 30,097.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,161.66 : 45,748.56 = 21,816.56 : x
  2. Step 2: Convert to fraction form
    33,161.66/45,748.56 = 21,816.56/x
  3. Step 3: Cross multiply
    33,161.66x = 45,748.56 × 21,816.56
  4. Step 4: Simplify right side
    33,161.66x = 998,076,204.15
  5. Step 5: Solve for x
    x = 998,076,204.15/33,161.66
  6. Step 6: Final answer
    x = 30,097.29

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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.