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Finding the Third Proportional to 2,860 and 4,710

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Solution

The third proportional to 2,860 and 4,710 is: 7,756.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860 : 4,710 = 4,710 : x
  2. Step 2: Convert to fraction form
    2,860/4,710 = 4,710/x
  3. Step 3: Cross multiply
    2,860x = 4,710 × 4,710
  4. Step 4: Simplify right side
    2,860x = 22,184,100
  5. Step 5: Solve for x
    x = 22,184,100/2,860
  6. Step 6: Final answer
    x = 7,756.68

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.