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Finding the Third Proportional to 5,058 and 7,209

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Solution

The third proportional to 5,058 and 7,209 is: 10,274.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,058 : 7,209 = 7,209 : x
  2. Step 2: Convert to fraction form
    5,058/7,209 = 7,209/x
  3. Step 3: Cross multiply
    5,058x = 7,209 × 7,209
  4. Step 4: Simplify right side
    5,058x = 51,969,681
  5. Step 5: Solve for x
    x = 51,969,681/5,058
  6. Step 6: Final answer
    x = 10,274.75

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.