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Finding the Third Proportional to 5,076 and 8,460

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Solution

The third proportional to 5,076 and 8,460 is: 14,100

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076 : 8,460 = 8,460 : x
  2. Step 2: Convert to fraction form
    5,076/8,460 = 8,460/x
  3. Step 3: Cross multiply
    5,076x = 8,460 × 8,460
  4. Step 4: Simplify right side
    5,076x = 71,571,600
  5. Step 5: Solve for x
    x = 71,571,600/5,076
  6. Step 6: Final answer
    x = 14,100

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.