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Finding the Third Proportional to 4,860 and 5,292

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Solution

The third proportional to 4,860 and 5,292 is: 5,762.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,860 : 5,292 = 5,292 : x
  2. Step 2: Convert to fraction form
    4,860/5,292 = 5,292/x
  3. Step 3: Cross multiply
    4,860x = 5,292 × 5,292
  4. Step 4: Simplify right side
    4,860x = 28,005,264
  5. Step 5: Solve for x
    x = 28,005,264/4,860
  6. Step 6: Final answer
    x = 5,762.40

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.