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Finding the Third Proportional to 13,176 and 19,764

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Solution

The third proportional to 13,176 and 19,764 is: 29,646

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176 : 19,764 = 19,764 : x
  2. Step 2: Convert to fraction form
    13,176/19,764 = 19,764/x
  3. Step 3: Cross multiply
    13,176x = 19,764 × 19,764
  4. Step 4: Simplify right side
    13,176x = 390,615,696
  5. Step 5: Solve for x
    x = 390,615,696/13,176
  6. Step 6: Final answer
    x = 29,646

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.