Home / 33,086.27-45,661.10-18,938.79

Finding the Fourth Proportional to 33,086.27, 45,661.10 and 18,938.79

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Solution

The fourth proportional to 33,086.27, 45,661.10 and 18,938.79 is: 26,136.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,086.27 : 45,661.10 = 18,938.79 : x
  2. Step 2: Convert to fraction form
    33,086.27/45,661.10 = 18,938.79/x
  3. Step 3: Cross multiply
    33,086.27x = 45,661.10 × 18,938.79
  4. Step 4: Simplify right side
    33,086.27x = 864,765,984.07
  5. Step 5: Solve for x
    x = 864,765,984.07/33,086.27
  6. Step 6: Final answer
    x = 26,136.70

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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.