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Finding the Third Proportional to 2,160 and 3,341.25

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Solution

The third proportional to 2,160 and 3,341.25 is: 5,168.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160 : 3,341.25 = 3,341.25 : x
  2. Step 2: Convert to fraction form
    2,160/3,341.25 = 3,341.25/x
  3. Step 3: Cross multiply
    2,160x = 3,341.25 × 3,341.25
  4. Step 4: Simplify right side
    2,160x = 11,163,951.56
  5. Step 5: Solve for x
    x = 11,163,951.56/2,160
  6. Step 6: Final answer
    x = 5,168.50

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.