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Finding the Third Proportional to 61,584 and 91,968

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Solution

The third proportional to 61,584 and 91,968 is: 137,342.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,584 : 91,968 = 91,968 : x
  2. Step 2: Convert to fraction form
    61,584/91,968 = 91,968/x
  3. Step 3: Cross multiply
    61,584x = 91,968 × 91,968
  4. Step 4: Simplify right side
    61,584x = 8,458,113,024
  5. Step 5: Solve for x
    x = 8,458,113,024/61,584
  6. Step 6: Final answer
    x = 137,342.70

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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.