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Finding the Fourth Proportional to 25,752,078.80, 38,691,103.80 and 19,374,786.80

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Solution

The fourth proportional to 25,752,078.80, 38,691,103.80 and 19,374,786.80 is: 29,109,567.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,752,078.80 : 38,691,103.80 = 19,374,786.80 : x
  2. Step 2: Convert to fraction form
    25,752,078.80/38,691,103.80 = 19,374,786.80/x
  3. Step 3: Cross multiply
    25,752,078.80x = 38,691,103.80 × 19,374,786.80
  4. Step 4: Simplify right side
    25,752,078.80x = 749,631,887,181,669.75
  5. Step 5: Solve for x
    x = 749,631,887,181,669.75/25,752,078.80
  6. Step 6: Final answer
    x = 29,109,567.93

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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.