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Finding the Third Proportional to 987,012 and 2,143,148

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Solution

The third proportional to 987,012 and 2,143,148 is: 4,653,523.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,012 : 2,143,148 = 2,143,148 : x
  2. Step 2: Convert to fraction form
    987,012/2,143,148 = 2,143,148/x
  3. Step 3: Cross multiply
    987,012x = 2,143,148 × 2,143,148
  4. Step 4: Simplify right side
    987,012x = 4,593,083,349,904
  5. Step 5: Solve for x
    x = 4,593,083,349,904/987,012
  6. Step 6: Final answer
    x = 4,653,523.31

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These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.