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Finding the Fourth Proportional to 33,889.59, 46,769.49 and 18,781.93

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Solution

The fourth proportional to 33,889.59, 46,769.49 and 18,781.93 is: 25,920.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,889.59 : 46,769.49 = 18,781.93 : x
  2. Step 2: Convert to fraction form
    33,889.59/46,769.49 = 18,781.93/x
  3. Step 3: Cross multiply
    33,889.59x = 46,769.49 × 18,781.93
  4. Step 4: Simplify right side
    33,889.59x = 878,421,287.32
  5. Step 5: Solve for x
    x = 878,421,287.32/33,889.59
  6. Step 6: Final answer
    x = 25,920.09

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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.