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Finding the Third Proportional to 371 and 801.50

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Solution

The third proportional to 371 and 801.50 is: 1,731.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    371 : 801.50 = 801.50 : x
  2. Step 2: Convert to fraction form
    371/801.50 = 801.50/x
  3. Step 3: Cross multiply
    371x = 801.50 × 801.50
  4. Step 4: Simplify right side
    371x = 642,402.25
  5. Step 5: Solve for x
    x = 642,402.25/371
  6. Step 6: Final answer
    x = 1,731.54

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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.