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Finding the Third Proportional to 4,386 and 6,153

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Solution

The third proportional to 4,386 and 6,153 is: 8,631.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,386 : 6,153 = 6,153 : x
  2. Step 2: Convert to fraction form
    4,386/6,153 = 6,153/x
  3. Step 3: Cross multiply
    4,386x = 6,153 × 6,153
  4. Step 4: Simplify right side
    4,386x = 37,859,409
  5. Step 5: Solve for x
    x = 37,859,409/4,386
  6. Step 6: Final answer
    x = 8,631.88

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.