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Finding the Fourth Proportional to 36,686.64, 50,628.12 and 19,919.64

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Solution

The fourth proportional to 36,686.64, 50,628.12 and 19,919.64 is: 27,489.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,686.64 : 50,628.12 = 19,919.64 : x
  2. Step 2: Convert to fraction form
    36,686.64/50,628.12 = 19,919.64/x
  3. Step 3: Cross multiply
    36,686.64x = 50,628.12 × 19,919.64
  4. Step 4: Simplify right side
    36,686.64x = 1,008,493,924.28
  5. Step 5: Solve for x
    x = 1,008,493,924.28/36,686.64
  6. Step 6: Final answer
    x = 27,489.41

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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.