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Finding the Third Proportional to 4,191,989 and 8,981,576

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Solution

The third proportional to 4,191,989 and 8,981,576 is: 19,243,539.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191,989 : 8,981,576 = 8,981,576 : x
  2. Step 2: Convert to fraction form
    4,191,989/8,981,576 = 8,981,576/x
  3. Step 3: Cross multiply
    4,191,989x = 8,981,576 × 8,981,576
  4. Step 4: Simplify right side
    4,191,989x = 80,668,707,443,776
  5. Step 5: Solve for x
    x = 80,668,707,443,776/4,191,989
  6. Step 6: Final answer
    x = 19,243,539.87

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.