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Finding the Third Proportional to 10,428 and 14,751

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Solution

The third proportional to 10,428 and 14,751 is: 20,866.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428 : 14,751 = 14,751 : x
  2. Step 2: Convert to fraction form
    10,428/14,751 = 14,751/x
  3. Step 3: Cross multiply
    10,428x = 14,751 × 14,751
  4. Step 4: Simplify right side
    10,428x = 217,592,001
  5. Step 5: Solve for x
    x = 217,592,001/10,428
  6. Step 6: Final answer
    x = 20,866.13

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.