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Finding the Third Proportional to 3,189,916.63 and 6,999,874.75

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Solution

The third proportional to 3,189,916.63 and 6,999,874.75 is: 15,360,353.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189,916.63 : 6,999,874.75 = 6,999,874.75 : x
  2. Step 2: Convert to fraction form
    3,189,916.63/6,999,874.75 = 6,999,874.75/x
  3. Step 3: Cross multiply
    3,189,916.63x = 6,999,874.75 × 6,999,874.75
  4. Step 4: Simplify right side
    3,189,916.63x = 48,998,246,515,687.56
  5. Step 5: Solve for x
    x = 48,998,246,515,687.56/3,189,916.63
  6. Step 6: Final answer
    x = 15,360,353.35

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.