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Finding the Third Proportional to 30,207.94 and 66,669.33

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Solution

The third proportional to 30,207.94 and 66,669.33 is: 147,140.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207.94 : 66,669.33 = 66,669.33 : x
  2. Step 2: Convert to fraction form
    30,207.94/66,669.33 = 66,669.33/x
  3. Step 3: Cross multiply
    30,207.94x = 66,669.33 × 66,669.33
  4. Step 4: Simplify right side
    30,207.94x = 4,444,799,312.64
  5. Step 5: Solve for x
    x = 4,444,799,312.64/30,207.94
  6. Step 6: Final answer
    x = 147,140.11

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.