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Finding the Third Proportional to 9,280 and 16,355

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Solution

The third proportional to 9,280 and 16,355 is: 28,823.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,280 : 16,355 = 16,355 : x
  2. Step 2: Convert to fraction form
    9,280/16,355 = 16,355/x
  3. Step 3: Cross multiply
    9,280x = 16,355 × 16,355
  4. Step 4: Simplify right side
    9,280x = 267,486,025
  5. Step 5: Solve for x
    x = 267,486,025/9,280
  6. Step 6: Final answer
    x = 28,823.93

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.