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Finding the Third Proportional to 4,140 and 7,062

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Solution

The third proportional to 4,140 and 7,062 is: 12,046.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140 : 7,062 = 7,062 : x
  2. Step 2: Convert to fraction form
    4,140/7,062 = 7,062/x
  3. Step 3: Cross multiply
    4,140x = 7,062 × 7,062
  4. Step 4: Simplify right side
    4,140x = 49,871,844
  5. Step 5: Solve for x
    x = 49,871,844/4,140
  6. Step 6: Final answer
    x = 12,046.34

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Why These Related Problems?

These problems maintain the same ratio (1.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.