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Finding the Third Proportional to 4,280 and 9,259

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Solution

The third proportional to 4,280 and 9,259 is: 20,030.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280 : 9,259 = 9,259 : x
  2. Step 2: Convert to fraction form
    4,280/9,259 = 9,259/x
  3. Step 3: Cross multiply
    4,280x = 9,259 × 9,259
  4. Step 4: Simplify right side
    4,280x = 85,729,081
  5. Step 5: Solve for x
    x = 85,729,081/4,280
  6. Step 6: Final answer
    x = 20,030.16

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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.