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Finding the Third Proportional to 31,976,220 and 70,328,266.50

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Solution

The third proportional to 31,976,220 and 70,328,266.50 is: 154,679,479.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,976,220 : 70,328,266.50 = 70,328,266.50 : x
  2. Step 2: Convert to fraction form
    31,976,220/70,328,266.50 = 70,328,266.50/x
  3. Step 3: Cross multiply
    31,976,220x = 70,328,266.50 × 70,328,266.50
  4. Step 4: Simplify right side
    31,976,220x = 4,946,065,068,895,022
  5. Step 5: Solve for x
    x = 4,946,065,068,895,022/31,976,220
  6. Step 6: Final answer
    x = 154,679,479.59

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.