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Finding the Fourth Proportional to 18,591,918.26, 25,654,809.85 and 10,750,243.86

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Solution

The fourth proportional to 18,591,918.26, 25,654,809.85 and 10,750,243.86 is: 14,834,158.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591,918.26 : 25,654,809.85 = 10,750,243.86 : x
  2. Step 2: Convert to fraction form
    18,591,918.26/25,654,809.85 = 10,750,243.86/x
  3. Step 3: Cross multiply
    18,591,918.26x = 25,654,809.85 × 10,750,243.86
  4. Step 4: Simplify right side
    18,591,918.26x = 275,795,462,042,554.41
  5. Step 5: Solve for x
    x = 275,795,462,042,554.41/18,591,918.26
  6. Step 6: Final answer
    x = 14,834,158.49

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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.