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Finding the Fourth Proportional to 36,897.96, 50,919.06 and 20,131.08

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Solution

The fourth proportional to 36,897.96, 50,919.06 and 20,131.08 is: 27,780.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,897.96 : 50,919.06 = 20,131.08 : x
  2. Step 2: Convert to fraction form
    36,897.96/50,919.06 = 20,131.08/x
  3. Step 3: Cross multiply
    36,897.96x = 50,919.06 × 20,131.08
  4. Step 4: Simplify right side
    36,897.96x = 1,025,055,670.38
  5. Step 5: Solve for x
    x = 1,025,055,670.38/36,897.96
  6. Step 6: Final answer
    x = 27,780.82

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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.