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Finding the Third Proportional to 943.50 and 1,560

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Solution

The third proportional to 943.50 and 1,560 is: 2,579.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    943.50 : 1,560 = 1,560 : x
  2. Step 2: Convert to fraction form
    943.50/1,560 = 1,560/x
  3. Step 3: Cross multiply
    943.50x = 1,560 × 1,560
  4. Step 4: Simplify right side
    943.50x = 2,433,600
  5. Step 5: Solve for x
    x = 2,433,600/943.50
  6. Step 6: Final answer
    x = 2,579.33

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.