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Finding the Fourth Proportional to 18,651,602.70, 27,977,404.05 and 11,074,668.30

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Solution

The fourth proportional to 18,651,602.70, 27,977,404.05 and 11,074,668.30 is: 16,612,002.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,651,602.70 : 27,977,404.05 = 11,074,668.30 : x
  2. Step 2: Convert to fraction form
    18,651,602.70/27,977,404.05 = 11,074,668.30/x
  3. Step 3: Cross multiply
    18,651,602.70x = 27,977,404.05 × 11,074,668.30
  4. Step 4: Simplify right side
    18,651,602.70x = 309,840,469,748,826.62
  5. Step 5: Solve for x
    x = 309,840,469,748,826.62/18,651,602.70
  6. Step 6: Final answer
    x = 16,612,002.45

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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.