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Finding the Third Proportional to 9,428 and 20,323

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Solution

The third proportional to 9,428 and 20,323 is: 43,808.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,428 : 20,323 = 20,323 : x
  2. Step 2: Convert to fraction form
    9,428/20,323 = 20,323/x
  3. Step 3: Cross multiply
    9,428x = 20,323 × 20,323
  4. Step 4: Simplify right side
    9,428x = 413,024,329
  5. Step 5: Solve for x
    x = 413,024,329/9,428
  6. Step 6: Final answer
    x = 43,808.27

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.