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Finding the Fourth Proportional to 13,361,796.45, 20,042,694.68 and 13,361,796.45

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Solution

The fourth proportional to 13,361,796.45, 20,042,694.68 and 13,361,796.45 is: 20,042,694.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361,796.45 : 20,042,694.68 = 13,361,796.45 : x
  2. Step 2: Convert to fraction form
    13,361,796.45/20,042,694.68 = 13,361,796.45/x
  3. Step 3: Cross multiply
    13,361,796.45x = 20,042,694.68 × 13,361,796.45
  4. Step 4: Simplify right side
    13,361,796.45x = 267,806,406,556,848.91
  5. Step 5: Solve for x
    x = 267,806,406,556,848.91/13,361,796.45
  6. Step 6: Final answer
    x = 20,042,694.68

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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.