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Finding the Third Proportional to 875.50 and 1,895

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Solution

The third proportional to 875.50 and 1,895 is: 4,101.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    875.50 : 1,895 = 1,895 : x
  2. Step 2: Convert to fraction form
    875.50/1,895 = 1,895/x
  3. Step 3: Cross multiply
    875.50x = 1,895 × 1,895
  4. Step 4: Simplify right side
    875.50x = 3,591,025
  5. Step 5: Solve for x
    x = 3,591,025/875.50
  6. Step 6: Final answer
    x = 4,101.68

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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.