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Finding the Fourth Proportional to 22,969,973.60, 31,699,975.60 and 12,656,694

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Solution

The fourth proportional to 22,969,973.60, 31,699,975.60 and 12,656,694 is: 17,467,015.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,969,973.60 : 31,699,975.60 = 12,656,694 : x
  2. Step 2: Convert to fraction form
    22,969,973.60/31,699,975.60 = 12,656,694/x
  3. Step 3: Cross multiply
    22,969,973.60x = 31,699,975.60 × 12,656,694
  4. Step 4: Simplify right side
    22,969,973.60x = 401,216,890,976,666.44
  5. Step 5: Solve for x
    x = 401,216,890,976,666.44/22,969,973.60
  6. Step 6: Final answer
    x = 17,467,015.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.