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Finding the Third Proportional to 813,987 and 1,772,620.50

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Solution

The third proportional to 813,987 and 1,772,620.50 is: 3,860,237.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,987 : 1,772,620.50 = 1,772,620.50 : x
  2. Step 2: Convert to fraction form
    813,987/1,772,620.50 = 1,772,620.50/x
  3. Step 3: Cross multiply
    813,987x = 1,772,620.50 × 1,772,620.50
  4. Step 4: Simplify right side
    813,987x = 3,142,183,437,020.25
  5. Step 5: Solve for x
    x = 3,142,183,437,020.25/813,987
  6. Step 6: Final answer
    x = 3,860,237.86

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.