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Finding the Third Proportional to 2,170.13 and 4,748.63

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Solution

The third proportional to 2,170.13 and 4,748.63 is: 10,390.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.13 : 4,748.63 = 4,748.63 : x
  2. Step 2: Convert to fraction form
    2,170.13/4,748.63 = 4,748.63/x
  3. Step 3: Cross multiply
    2,170.13x = 4,748.63 × 4,748.63
  4. Step 4: Simplify right side
    2,170.13x = 22,549,439.39
  5. Step 5: Solve for x
    x = 22,549,439.39/2,170.13
  6. Step 6: Final answer
    x = 10,390.85

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.