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Finding the Third Proportional to 28,725,856 and 42,987,005

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Solution

The third proportional to 28,725,856 and 42,987,005 is: 64,328,199.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,725,856 : 42,987,005 = 42,987,005 : x
  2. Step 2: Convert to fraction form
    28,725,856/42,987,005 = 42,987,005/x
  3. Step 3: Cross multiply
    28,725,856x = 42,987,005 × 42,987,005
  4. Step 4: Simplify right side
    28,725,856x = 1,847,882,598,870,025
  5. Step 5: Solve for x
    x = 1,847,882,598,870,025/28,725,856
  6. Step 6: Final answer
    x = 64,328,199.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.