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Finding the Third Proportional to 4,090 and 6,243

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Solution

The third proportional to 4,090 and 6,243 is: 9,529.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090 : 6,243 = 6,243 : x
  2. Step 2: Convert to fraction form
    4,090/6,243 = 6,243/x
  3. Step 3: Cross multiply
    4,090x = 6,243 × 6,243
  4. Step 4: Simplify right side
    4,090x = 38,975,049
  5. Step 5: Solve for x
    x = 38,975,049/4,090
  6. Step 6: Final answer
    x = 9,529.35

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.