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Finding the Fourth Proportional to 18,422,791.80, 27,584,421.30 and 14,441,479.80

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Solution

The fourth proportional to 18,422,791.80, 27,584,421.30 and 14,441,479.80 is: 21,623,208.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,422,791.80 : 27,584,421.30 = 14,441,479.80 : x
  2. Step 2: Convert to fraction form
    18,422,791.80/27,584,421.30 = 14,441,479.80/x
  3. Step 3: Cross multiply
    18,422,791.80x = 27,584,421.30 × 14,441,479.80
  4. Step 4: Simplify right side
    18,422,791.80x = 398,359,862,998,639.75
  5. Step 5: Solve for x
    x = 398,359,862,998,639.75/18,422,791.80
  6. Step 6: Final answer
    x = 21,623,208.22

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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.