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Finding the Third Proportional to 28,734 and 63,228

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Solution

The third proportional to 28,734 and 63,228 is: 139,130.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,734 : 63,228 = 63,228 : x
  2. Step 2: Convert to fraction form
    28,734/63,228 = 63,228/x
  3. Step 3: Cross multiply
    28,734x = 63,228 × 63,228
  4. Step 4: Simplify right side
    28,734x = 3,997,779,984
  5. Step 5: Solve for x
    x = 3,997,779,984/28,734
  6. Step 6: Final answer
    x = 139,130.65

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.