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Finding the Fourth Proportional to 36,705.20, 50,653.20 and 19,938.20

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Solution

The fourth proportional to 36,705.20, 50,653.20 and 19,938.20 is: 27,514.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,705.20 : 50,653.20 = 19,938.20 : x
  2. Step 2: Convert to fraction form
    36,705.20/50,653.20 = 19,938.20/x
  3. Step 3: Cross multiply
    36,705.20x = 50,653.20 × 19,938.20
  4. Step 4: Simplify right side
    36,705.20x = 1,009,933,632.24
  5. Step 5: Solve for x
    x = 1,009,933,632.24/36,705.20
  6. Step 6: Final answer
    x = 27,514.73

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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.