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Finding the Third Proportional to 66,539 and 97,861.50

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Solution

The third proportional to 66,539 and 97,861.50 is: 143,928.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,539 : 97,861.50 = 97,861.50 : x
  2. Step 2: Convert to fraction form
    66,539/97,861.50 = 97,861.50/x
  3. Step 3: Cross multiply
    66,539x = 97,861.50 × 97,861.50
  4. Step 4: Simplify right side
    66,539x = 9,576,873,182.25
  5. Step 5: Solve for x
    x = 9,576,873,182.25/66,539
  6. Step 6: Final answer
    x = 143,928.72

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.