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Finding the Third Proportional to 5,386 and 8,043

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Solution

The third proportional to 5,386 and 8,043 is: 12,010.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386 : 8,043 = 8,043 : x
  2. Step 2: Convert to fraction form
    5,386/8,043 = 8,043/x
  3. Step 3: Cross multiply
    5,386x = 8,043 × 8,043
  4. Step 4: Simplify right side
    5,386x = 64,689,849
  5. Step 5: Solve for x
    x = 64,689,849/5,386
  6. Step 6: Final answer
    x = 12,010.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.