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Finding the Third Proportional to 6,718.50 and 14,436

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Solution

The third proportional to 6,718.50 and 14,436 is: 31,018.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,718.50 : 14,436 = 14,436 : x
  2. Step 2: Convert to fraction form
    6,718.50/14,436 = 14,436/x
  3. Step 3: Cross multiply
    6,718.50x = 14,436 × 14,436
  4. Step 4: Simplify right side
    6,718.50x = 208,398,096
  5. Step 5: Solve for x
    x = 208,398,096/6,718.50
  6. Step 6: Final answer
    x = 31,018.55

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.