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Finding the Third Proportional to 1,165.22 and 1,818.70

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Solution

The third proportional to 1,165.22 and 1,818.70 is: 2,838.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.22 : 1,818.70 = 1,818.70 : x
  2. Step 2: Convert to fraction form
    1,165.22/1,818.70 = 1,818.70/x
  3. Step 3: Cross multiply
    1,165.22x = 1,818.70 × 1,818.70
  4. Step 4: Simplify right side
    1,165.22x = 3,307,681.06
  5. Step 5: Solve for x
    x = 3,307,681.06/1,165.22
  6. Step 6: Final answer
    x = 2,838.68

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.