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Finding the Third Proportional to 2,858 and 4,403

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Solution

The third proportional to 2,858 and 4,403 is: 6,783.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858 : 4,403 = 4,403 : x
  2. Step 2: Convert to fraction form
    2,858/4,403 = 4,403/x
  3. Step 3: Cross multiply
    2,858x = 4,403 × 4,403
  4. Step 4: Simplify right side
    2,858x = 19,386,409
  5. Step 5: Solve for x
    x = 19,386,409/2,858
  6. Step 6: Final answer
    x = 6,783.21

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.