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Finding the Third Proportional to 962 and 1,491.50

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Solution

The third proportional to 962 and 1,491.50 is: 2,312.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    962 : 1,491.50 = 1,491.50 : x
  2. Step 2: Convert to fraction form
    962/1,491.50 = 1,491.50/x
  3. Step 3: Cross multiply
    962x = 1,491.50 × 1,491.50
  4. Step 4: Simplify right side
    962x = 2,224,572.25
  5. Step 5: Solve for x
    x = 2,224,572.25/962
  6. Step 6: Final answer
    x = 2,312.45

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.