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Finding the Third Proportional to 22,140 and 47,779

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Solution

The third proportional to 22,140 and 47,779 is: 103,108.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,140 : 47,779 = 47,779 : x
  2. Step 2: Convert to fraction form
    22,140/47,779 = 47,779/x
  3. Step 3: Cross multiply
    22,140x = 47,779 × 47,779
  4. Step 4: Simplify right side
    22,140x = 2,282,832,841
  5. Step 5: Solve for x
    x = 2,282,832,841/22,140
  6. Step 6: Final answer
    x = 103,108.98

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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.