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Finding the Third Proportional to 4,240 and 4,648

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Solution

The third proportional to 4,240 and 4,648 is: 5,095.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,240 : 4,648 = 4,648 : x
  2. Step 2: Convert to fraction form
    4,240/4,648 = 4,648/x
  3. Step 3: Cross multiply
    4,240x = 4,648 × 4,648
  4. Step 4: Simplify right side
    4,240x = 21,603,904
  5. Step 5: Solve for x
    x = 21,603,904/4,240
  6. Step 6: Final answer
    x = 5,095.26

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.