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Finding the Third Proportional to 4,528 and 9,642

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Solution

The third proportional to 4,528 and 9,642 is: 20,531.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,528 : 9,642 = 9,642 : x
  2. Step 2: Convert to fraction form
    4,528/9,642 = 9,642/x
  3. Step 3: Cross multiply
    4,528x = 9,642 × 9,642
  4. Step 4: Simplify right side
    4,528x = 92,968,164
  5. Step 5: Solve for x
    x = 92,968,164/4,528
  6. Step 6: Final answer
    x = 20,531.84

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.