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Finding the Fourth Proportional to 35,491,237.80, 48,978,055.78 and 19,193,713.80

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Solution

The fourth proportional to 35,491,237.80, 48,978,055.78 and 19,193,713.80 is: 26,487,404.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,491,237.80 : 48,978,055.78 = 19,193,713.80 : x
  2. Step 2: Convert to fraction form
    35,491,237.80/48,978,055.78 = 19,193,713.80/x
  3. Step 3: Cross multiply
    35,491,237.80x = 48,978,055.78 × 19,193,713.80
  4. Step 4: Simplify right side
    35,491,237.80x = 940,070,785,121,755.88
  5. Step 5: Solve for x
    x = 940,070,785,121,755.88/35,491,237.80
  6. Step 6: Final answer
    x = 26,487,404.87

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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.