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Finding the Third Proportional to 1,636 and 3,776

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Solution

The third proportional to 1,636 and 3,776 is: 8,715.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636 : 3,776 = 3,776 : x
  2. Step 2: Convert to fraction form
    1,636/3,776 = 3,776/x
  3. Step 3: Cross multiply
    1,636x = 3,776 × 3,776
  4. Step 4: Simplify right side
    1,636x = 14,258,176
  5. Step 5: Solve for x
    x = 14,258,176/1,636
  6. Step 6: Final answer
    x = 8,715.27

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.