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Finding the Third Proportional to 61,506 and 91,938

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Solution

The third proportional to 61,506 and 91,938 is: 137,427.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,506 : 91,938 = 91,938 : x
  2. Step 2: Convert to fraction form
    61,506/91,938 = 91,938/x
  3. Step 3: Cross multiply
    61,506x = 91,938 × 91,938
  4. Step 4: Simplify right side
    61,506x = 8,452,595,844
  5. Step 5: Solve for x
    x = 8,452,595,844/61,506
  6. Step 6: Final answer
    x = 137,427.18

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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.