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Finding the Third Proportional to 8,815,690.50 and 13,622,479.50

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Solution

The third proportional to 8,815,690.50 and 13,622,479.50 is: 21,050,188.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815,690.50 : 13,622,479.50 = 13,622,479.50 : x
  2. Step 2: Convert to fraction form
    8,815,690.50/13,622,479.50 = 13,622,479.50/x
  3. Step 3: Cross multiply
    8,815,690.50x = 13,622,479.50 × 13,622,479.50
  4. Step 4: Simplify right side
    8,815,690.50x = 185,571,947,727,920.25
  5. Step 5: Solve for x
    x = 185,571,947,727,920.25/8,815,690.50
  6. Step 6: Final answer
    x = 21,050,188.61

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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.