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Finding the Third Proportional to 56,220 and 84,026

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Solution

The third proportional to 56,220 and 84,026 is: 125,584.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,220 : 84,026 = 84,026 : x
  2. Step 2: Convert to fraction form
    56,220/84,026 = 84,026/x
  3. Step 3: Cross multiply
    56,220x = 84,026 × 84,026
  4. Step 4: Simplify right side
    56,220x = 7,060,368,676
  5. Step 5: Solve for x
    x = 7,060,368,676/56,220
  6. Step 6: Final answer
    x = 125,584.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.