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Finding the Third Proportional to 8,490 and 11,094

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Solution

The third proportional to 8,490 and 11,094 is: 14,496.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,490 : 11,094 = 11,094 : x
  2. Step 2: Convert to fraction form
    8,490/11,094 = 11,094/x
  3. Step 3: Cross multiply
    8,490x = 11,094 × 11,094
  4. Step 4: Simplify right side
    8,490x = 123,076,836
  5. Step 5: Solve for x
    x = 123,076,836/8,490
  6. Step 6: Final answer
    x = 14,496.68

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.