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Finding the Third Proportional to 8,792 and 19,428

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Solution

The third proportional to 8,792 and 19,428 is: 42,930.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,792 : 19,428 = 19,428 : x
  2. Step 2: Convert to fraction form
    8,792/19,428 = 19,428/x
  3. Step 3: Cross multiply
    8,792x = 19,428 × 19,428
  4. Step 4: Simplify right side
    8,792x = 377,447,184
  5. Step 5: Solve for x
    x = 377,447,184/8,792
  6. Step 6: Final answer
    x = 42,930.75

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.