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Finding the Third Proportional to 50,958 and 78,709

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Solution

The third proportional to 50,958 and 78,709 is: 121,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,958 : 78,709 = 78,709 : x
  2. Step 2: Convert to fraction form
    50,958/78,709 = 78,709/x
  3. Step 3: Cross multiply
    50,958x = 78,709 × 78,709
  4. Step 4: Simplify right side
    50,958x = 6,195,106,681
  5. Step 5: Solve for x
    x = 6,195,106,681/50,958
  6. Step 6: Final answer
    x = 121,572.80

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.