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Finding the Fourth Proportional to 18,857,892.30, 28,244,848.05 and 16,338,468.30

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Solution

The fourth proportional to 18,857,892.30, 28,244,848.05 and 16,338,468.30 is: 24,471,321.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857,892.30 : 28,244,848.05 = 16,338,468.30 : x
  2. Step 2: Convert to fraction form
    18,857,892.30/28,244,848.05 = 16,338,468.30/x
  3. Step 3: Cross multiply
    18,857,892.30x = 28,244,848.05 × 16,338,468.30
  4. Step 4: Simplify right side
    18,857,892.30x = 461,477,554,503,241.88
  5. Step 5: Solve for x
    x = 461,477,554,503,241.88/18,857,892.30
  6. Step 6: Final answer
    x = 24,471,321.99

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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.