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Finding the Fourth Proportional to 18,157,536.80, 27,236,305.20 and 18,157,536.80

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Solution

The fourth proportional to 18,157,536.80, 27,236,305.20 and 18,157,536.80 is: 27,236,305.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,157,536.80 : 27,236,305.20 = 18,157,536.80 : x
  2. Step 2: Convert to fraction form
    18,157,536.80/27,236,305.20 = 18,157,536.80/x
  3. Step 3: Cross multiply
    18,157,536.80x = 27,236,305.20 × 18,157,536.80
  4. Step 4: Simplify right side
    18,157,536.80x = 494,544,213,965,031.38
  5. Step 5: Solve for x
    x = 494,544,213,965,031.38/18,157,536.80
  6. Step 6: Final answer
    x = 27,236,305.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.