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Finding the Third Proportional to 972.50 and 2,110

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Solution

The third proportional to 972.50 and 2,110 is: 4,577.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    972.50 : 2,110 = 2,110 : x
  2. Step 2: Convert to fraction form
    972.50/2,110 = 2,110/x
  3. Step 3: Cross multiply
    972.50x = 2,110 × 2,110
  4. Step 4: Simplify right side
    972.50x = 4,452,100
  5. Step 5: Solve for x
    x = 4,452,100/972.50
  6. Step 6: Final answer
    x = 4,577.99

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.