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Finding the Third Proportional to 5,655 and 7,342.50

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Solution

The third proportional to 5,655 and 7,342.50 is: 9,533.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,655 : 7,342.50 = 7,342.50 : x
  2. Step 2: Convert to fraction form
    5,655/7,342.50 = 7,342.50/x
  3. Step 3: Cross multiply
    5,655x = 7,342.50 × 7,342.50
  4. Step 4: Simplify right side
    5,655x = 53,912,306.25
  5. Step 5: Solve for x
    x = 53,912,306.25/5,655
  6. Step 6: Final answer
    x = 9,533.56

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.