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Finding the Third Proportional to 1,862 and 4,358

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Solution

The third proportional to 1,862 and 4,358 is: 10,199.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862 : 4,358 = 4,358 : x
  2. Step 2: Convert to fraction form
    1,862/4,358 = 4,358/x
  3. Step 3: Cross multiply
    1,862x = 4,358 × 4,358
  4. Step 4: Simplify right side
    1,862x = 18,992,164
  5. Step 5: Solve for x
    x = 18,992,164/1,862
  6. Step 6: Final answer
    x = 10,199.87

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.