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Finding the Third Proportional to 58,713 and 78,651.75

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Solution

The third proportional to 58,713 and 78,651.75 is: 105,361.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,713 : 78,651.75 = 78,651.75 : x
  2. Step 2: Convert to fraction form
    58,713/78,651.75 = 78,651.75/x
  3. Step 3: Cross multiply
    58,713x = 78,651.75 × 78,651.75
  4. Step 4: Simplify right side
    58,713x = 6,186,097,778.06
  5. Step 5: Solve for x
    x = 6,186,097,778.06/58,713
  6. Step 6: Final answer
    x = 105,361.64

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.