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Finding the Third Proportional to 5,070 and 5,418

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Solution

The third proportional to 5,070 and 5,418 is: 5,789.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,070 : 5,418 = 5,418 : x
  2. Step 2: Convert to fraction form
    5,070/5,418 = 5,418/x
  3. Step 3: Cross multiply
    5,070x = 5,418 × 5,418
  4. Step 4: Simplify right side
    5,070x = 29,354,724
  5. Step 5: Solve for x
    x = 29,354,724/5,070
  6. Step 6: Final answer
    x = 5,789.89

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Why These Related Problems?

These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.