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Finding the Third Proportional to 3,521,277.56 and 7,420,793.06

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Solution

The third proportional to 3,521,277.56 and 7,420,793.06 is: 15,638,690.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521,277.56 : 7,420,793.06 = 7,420,793.06 : x
  2. Step 2: Convert to fraction form
    3,521,277.56/7,420,793.06 = 7,420,793.06/x
  3. Step 3: Cross multiply
    3,521,277.56x = 7,420,793.06 × 7,420,793.06
  4. Step 4: Simplify right side
    3,521,277.56x = 55,068,169,676,448.12
  5. Step 5: Solve for x
    x = 55,068,169,676,448.12/3,521,277.56
  6. Step 6: Final answer
    x = 15,638,690.42

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.