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Finding the Third Proportional to 35,780 and 53,670

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Solution

The third proportional to 35,780 and 53,670 is: 80,505

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,780 : 53,670 = 53,670 : x
  2. Step 2: Convert to fraction form
    35,780/53,670 = 53,670/x
  3. Step 3: Cross multiply
    35,780x = 53,670 × 53,670
  4. Step 4: Simplify right side
    35,780x = 2,880,468,900
  5. Step 5: Solve for x
    x = 2,880,468,900/35,780
  6. Step 6: Final answer
    x = 80,505

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.