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Finding the Third Proportional to 1,225.13 and 2,648.53

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Solution

The third proportional to 1,225.13 and 2,648.53 is: 5,725.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225.13 : 2,648.53 = 2,648.53 : x
  2. Step 2: Convert to fraction form
    1,225.13/2,648.53 = 2,648.53/x
  3. Step 3: Cross multiply
    1,225.13x = 2,648.53 × 2,648.53
  4. Step 4: Simplify right side
    1,225.13x = 7,014,717.78
  5. Step 5: Solve for x
    x = 7,014,717.78/1,225.13
  6. Step 6: Final answer
    x = 5,725.72

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.