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Finding the Third Proportional to 55,776 and 79,508

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Solution

The third proportional to 55,776 and 79,508 is: 113,337.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,776 : 79,508 = 79,508 : x
  2. Step 2: Convert to fraction form
    55,776/79,508 = 79,508/x
  3. Step 3: Cross multiply
    55,776x = 79,508 × 79,508
  4. Step 4: Simplify right side
    55,776x = 6,321,522,064
  5. Step 5: Solve for x
    x = 6,321,522,064/55,776
  6. Step 6: Final answer
    x = 113,337.67

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.