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Finding the Third Proportional to 4,539.75 and 6,424.13

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Solution

The third proportional to 4,539.75 and 6,424.13 is: 9,090.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,539.75 : 6,424.13 = 6,424.13 : x
  2. Step 2: Convert to fraction form
    4,539.75/6,424.13 = 6,424.13/x
  3. Step 3: Cross multiply
    4,539.75x = 6,424.13 × 6,424.13
  4. Step 4: Simplify right side
    4,539.75x = 41,269,382.02
  5. Step 5: Solve for x
    x = 41,269,382.02/4,539.75
  6. Step 6: Final answer
    x = 9,090.67

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.