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Finding the Third Proportional to 45,972 and 66,960

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Solution

The third proportional to 45,972 and 66,960 is: 97,529.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,972 : 66,960 = 66,960 : x
  2. Step 2: Convert to fraction form
    45,972/66,960 = 66,960/x
  3. Step 3: Cross multiply
    45,972x = 66,960 × 66,960
  4. Step 4: Simplify right side
    45,972x = 4,483,641,600
  5. Step 5: Solve for x
    x = 4,483,641,600/45,972
  6. Step 6: Final answer
    x = 97,529.84

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.