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Finding the Third Proportional to 65,472 and 97,728

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Solution

The third proportional to 65,472 and 97,728 is: 145,875.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,472 : 97,728 = 97,728 : x
  2. Step 2: Convert to fraction form
    65,472/97,728 = 97,728/x
  3. Step 3: Cross multiply
    65,472x = 97,728 × 97,728
  4. Step 4: Simplify right side
    65,472x = 9,550,761,984
  5. Step 5: Solve for x
    x = 9,550,761,984/65,472
  6. Step 6: Final answer
    x = 145,875.52

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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.