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Finding the Third Proportional to 1,265.63 and 2,999.53

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Solution

The third proportional to 1,265.63 and 2,999.53 is: 7,108.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265.63 : 2,999.53 = 2,999.53 : x
  2. Step 2: Convert to fraction form
    1,265.63/2,999.53 = 2,999.53/x
  3. Step 3: Cross multiply
    1,265.63x = 2,999.53 × 2,999.53
  4. Step 4: Simplify right side
    1,265.63x = 8,997,187.72
  5. Step 5: Solve for x
    x = 8,997,187.72/1,265.63
  6. Step 6: Final answer
    x = 7,108.89

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.