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Finding the Fourth Proportional to 18,461,709.70, 27,692,564.55 and 16,335,945.70

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Solution

The fourth proportional to 18,461,709.70, 27,692,564.55 and 16,335,945.70 is: 24,503,918.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,461,709.70 : 27,692,564.55 = 16,335,945.70 : x
  2. Step 2: Convert to fraction form
    18,461,709.70/27,692,564.55 = 16,335,945.70/x
  3. Step 3: Cross multiply
    18,461,709.70x = 27,692,564.55 × 16,335,945.70
  4. Step 4: Simplify right side
    18,461,709.70x = 452,384,230,782,544.94
  5. Step 5: Solve for x
    x = 452,384,230,782,544.94/18,461,709.70
  6. Step 6: Final answer
    x = 24,503,918.55

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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.