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Finding the Third Proportional to 66,317 and 93,211

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Solution

The third proportional to 66,317 and 93,211 is: 131,011.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,317 : 93,211 = 93,211 : x
  2. Step 2: Convert to fraction form
    66,317/93,211 = 93,211/x
  3. Step 3: Cross multiply
    66,317x = 93,211 × 93,211
  4. Step 4: Simplify right side
    66,317x = 8,688,290,521
  5. Step 5: Solve for x
    x = 8,688,290,521/66,317
  6. Step 6: Final answer
    x = 131,011.51

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.