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Finding the Fourth Proportional to 12,606,523.20, 18,881,791.20 and 10,926,907.20

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Solution

The fourth proportional to 12,606,523.20, 18,881,791.20 and 10,926,907.20 is: 16,366,096.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,606,523.20 : 18,881,791.20 = 10,926,907.20 : x
  2. Step 2: Convert to fraction form
    12,606,523.20/18,881,791.20 = 10,926,907.20/x
  3. Step 3: Cross multiply
    12,606,523.20x = 18,881,791.20 × 10,926,907.20
  4. Step 4: Simplify right side
    12,606,523.20x = 206,319,580,212,176.62
  5. Step 5: Solve for x
    x = 206,319,580,212,176.62/12,606,523.20
  6. Step 6: Final answer
    x = 16,366,096.90

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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.