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Finding the Third Proportional to 4,376 and 6,436

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Solution

The third proportional to 4,376 and 6,436 is: 9,465.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,376 : 6,436 = 6,436 : x
  2. Step 2: Convert to fraction form
    4,376/6,436 = 6,436/x
  3. Step 3: Cross multiply
    4,376x = 6,436 × 6,436
  4. Step 4: Simplify right side
    4,376x = 41,422,096
  5. Step 5: Solve for x
    x = 41,422,096/4,376
  6. Step 6: Final answer
    x = 9,465.74

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.