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Finding the Third Proportional to 982.50 and 2,119

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Solution

The third proportional to 982.50 and 2,119 is: 4,570.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    982.50 : 2,119 = 2,119 : x
  2. Step 2: Convert to fraction form
    982.50/2,119 = 2,119/x
  3. Step 3: Cross multiply
    982.50x = 2,119 × 2,119
  4. Step 4: Simplify right side
    982.50x = 4,490,161
  5. Step 5: Solve for x
    x = 4,490,161/982.50
  6. Step 6: Final answer
    x = 4,570.14

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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.