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Finding the Third Proportional to 699.19 and 1,535.06

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Solution

The third proportional to 699.19 and 1,535.06 is: 3,370.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    699.19 : 1,535.06 = 1,535.06 : x
  2. Step 2: Convert to fraction form
    699.19/1,535.06 = 1,535.06/x
  3. Step 3: Cross multiply
    699.19x = 1,535.06 × 1,535.06
  4. Step 4: Simplify right side
    699.19x = 2,356,416.88
  5. Step 5: Solve for x
    x = 2,356,416.88/699.19
  6. Step 6: Final answer
    x = 3,370.22

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.