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Finding the Third Proportional to 2,415 and 4,296

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Solution

The third proportional to 2,415 and 4,296 is: 7,642.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415 : 4,296 = 4,296 : x
  2. Step 2: Convert to fraction form
    2,415/4,296 = 4,296/x
  3. Step 3: Cross multiply
    2,415x = 4,296 × 4,296
  4. Step 4: Simplify right side
    2,415x = 18,455,616
  5. Step 5: Solve for x
    x = 18,455,616/2,415
  6. Step 6: Final answer
    x = 7,642.08

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.