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Finding the Third Proportional to 1,858 and 4,036

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Solution

The third proportional to 1,858 and 4,036 is: 8,767.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858 : 4,036 = 4,036 : x
  2. Step 2: Convert to fraction form
    1,858/4,036 = 4,036/x
  3. Step 3: Cross multiply
    1,858x = 4,036 × 4,036
  4. Step 4: Simplify right side
    1,858x = 16,289,296
  5. Step 5: Solve for x
    x = 16,289,296/1,858
  6. Step 6: Final answer
    x = 8,767.11

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.