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Finding the Third Proportional to 4,620 and 5,124

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Solution

The third proportional to 4,620 and 5,124 is: 5,682.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,620 : 5,124 = 5,124 : x
  2. Step 2: Convert to fraction form
    4,620/5,124 = 5,124/x
  3. Step 3: Cross multiply
    4,620x = 5,124 × 5,124
  4. Step 4: Simplify right side
    4,620x = 26,255,376
  5. Step 5: Solve for x
    x = 26,255,376/4,620
  6. Step 6: Final answer
    x = 5,682.98

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.