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Finding the Third Proportional to 2,528 and 5,230

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Solution

The third proportional to 2,528 and 5,230 is: 10,819.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528 : 5,230 = 5,230 : x
  2. Step 2: Convert to fraction form
    2,528/5,230 = 5,230/x
  3. Step 3: Cross multiply
    2,528x = 5,230 × 5,230
  4. Step 4: Simplify right side
    2,528x = 27,352,900
  5. Step 5: Solve for x
    x = 27,352,900/2,528
  6. Step 6: Final answer
    x = 10,819.98

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.