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Finding the Third Proportional to 1,445 and 2,184

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Solution

The third proportional to 1,445 and 2,184 is: 3,300.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445 : 2,184 = 2,184 : x
  2. Step 2: Convert to fraction form
    1,445/2,184 = 2,184/x
  3. Step 3: Cross multiply
    1,445x = 2,184 × 2,184
  4. Step 4: Simplify right side
    1,445x = 4,769,856
  5. Step 5: Solve for x
    x = 4,769,856/1,445
  6. Step 6: Final answer
    x = 3,300.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.