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Finding the Third Proportional to 4,620,406.50 and 7,182,621

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Solution

The third proportional to 4,620,406.50 and 7,182,621 is: 11,165,693.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,620,406.50 : 7,182,621 = 7,182,621 : x
  2. Step 2: Convert to fraction form
    4,620,406.50/7,182,621 = 7,182,621/x
  3. Step 3: Cross multiply
    4,620,406.50x = 7,182,621 × 7,182,621
  4. Step 4: Simplify right side
    4,620,406.50x = 51,590,044,429,641
  5. Step 5: Solve for x
    x = 51,590,044,429,641/4,620,406.50
  6. Step 6: Final answer
    x = 11,165,693.85

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.