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Finding the Third Proportional to 7,891,504.73 and 18,438,122.39

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Solution

The third proportional to 7,891,504.73 and 18,438,122.39 is: 43,079,788.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,891,504.73 : 18,438,122.39 = 18,438,122.39 : x
  2. Step 2: Convert to fraction form
    7,891,504.73/18,438,122.39 = 18,438,122.39/x
  3. Step 3: Cross multiply
    7,891,504.73x = 18,438,122.39 × 18,438,122.39
  4. Step 4: Simplify right side
    7,891,504.73x = 339,964,357,291,666.94
  5. Step 5: Solve for x
    x = 339,964,357,291,666.94/7,891,504.73
  6. Step 6: Final answer
    x = 43,079,788.80

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.