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Finding the Third Proportional to 968.50 and 1,715

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Solution

The third proportional to 968.50 and 1,715 is: 3,036.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.50 : 1,715 = 1,715 : x
  2. Step 2: Convert to fraction form
    968.50/1,715 = 1,715/x
  3. Step 3: Cross multiply
    968.50x = 1,715 × 1,715
  4. Step 4: Simplify right side
    968.50x = 2,941,225
  5. Step 5: Solve for x
    x = 2,941,225/968.50
  6. Step 6: Final answer
    x = 3,036.89

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.