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Finding the Third Proportional to 30,361.50 and 65,583

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Solution

The third proportional to 30,361.50 and 65,583 is: 141,663.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,361.50 : 65,583 = 65,583 : x
  2. Step 2: Convert to fraction form
    30,361.50/65,583 = 65,583/x
  3. Step 3: Cross multiply
    30,361.50x = 65,583 × 65,583
  4. Step 4: Simplify right side
    30,361.50x = 4,301,129,889
  5. Step 5: Solve for x
    x = 4,301,129,889/30,361.50
  6. Step 6: Final answer
    x = 141,663.95

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.