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Finding the Third Proportional to 1,765.55 and 2,699.58

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Solution

The third proportional to 1,765.55 and 2,699.58 is: 4,127.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,765.55 : 2,699.58 = 2,699.58 : x
  2. Step 2: Convert to fraction form
    1,765.55/2,699.58 = 2,699.58/x
  3. Step 3: Cross multiply
    1,765.55x = 2,699.58 × 2,699.58
  4. Step 4: Simplify right side
    1,765.55x = 7,287,722.05
  5. Step 5: Solve for x
    x = 7,287,722.05/1,765.55
  6. Step 6: Final answer
    x = 4,127.74

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.