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Finding the Third Proportional to 988 and 1,450

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Solution

The third proportional to 988 and 1,450 is: 2,128.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    988 : 1,450 = 1,450 : x
  2. Step 2: Convert to fraction form
    988/1,450 = 1,450/x
  3. Step 3: Cross multiply
    988x = 1,450 × 1,450
  4. Step 4: Simplify right side
    988x = 2,102,500
  5. Step 5: Solve for x
    x = 2,102,500/988
  6. Step 6: Final answer
    x = 2,128.04

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.