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Finding the Fourth Proportional to 36,833.62, 50,830.75 and 20,918.18

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Solution

The fourth proportional to 36,833.62, 50,830.75 and 20,918.18 is: 28,867.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,833.62 : 50,830.75 = 20,918.18 : x
  2. Step 2: Convert to fraction form
    36,833.62/50,830.75 = 20,918.18/x
  3. Step 3: Cross multiply
    36,833.62x = 50,830.75 × 20,918.18
  4. Step 4: Simplify right side
    36,833.62x = 1,063,286,673.44
  5. Step 5: Solve for x
    x = 1,063,286,673.44/36,833.62
  6. Step 6: Final answer
    x = 28,867.29

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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.