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Finding the Third Proportional to 5,742 and 7,560

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Solution

The third proportional to 5,742 and 7,560 is: 9,953.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,742 : 7,560 = 7,560 : x
  2. Step 2: Convert to fraction form
    5,742/7,560 = 7,560/x
  3. Step 3: Cross multiply
    5,742x = 7,560 × 7,560
  4. Step 4: Simplify right side
    5,742x = 57,153,600
  5. Step 5: Solve for x
    x = 57,153,600/5,742
  6. Step 6: Final answer
    x = 9,953.61

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.