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Finding the Third Proportional to 30,313.25 and 66,133

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Solution

The third proportional to 30,313.25 and 66,133 is: 144,279.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,313.25 : 66,133 = 66,133 : x
  2. Step 2: Convert to fraction form
    30,313.25/66,133 = 66,133/x
  3. Step 3: Cross multiply
    30,313.25x = 66,133 × 66,133
  4. Step 4: Simplify right side
    30,313.25x = 4,373,573,689
  5. Step 5: Solve for x
    x = 4,373,573,689/30,313.25
  6. Step 6: Final answer
    x = 144,279.27

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.