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Finding the Third Proportional to 8,733,612,987 and 12,489,162,658.50

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Solution

The third proportional to 8,733,612,987 and 12,489,162,658.50 is: 17,859,640,007.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,733,612,987 : 12,489,162,658.50 = 12,489,162,658.50 : x
  2. Step 2: Convert to fraction form
    8,733,612,987/12,489,162,658.50 = 12,489,162,658.50/x
  3. Step 3: Cross multiply
    8,733,612,987x = 12,489,162,658.50 × 12,489,162,658.50
  4. Step 4: Simplify right side
    8,733,612,987x = 155,979,183,910,470,778,880
  5. Step 5: Solve for x
    x = 155,979,183,910,470,778,880/8,733,612,987
  6. Step 6: Final answer
    x = 17,859,640,007.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.