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Finding the Third Proportional to 2,642.63 and 5,113.13

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Solution

The third proportional to 2,642.63 and 5,113.13 is: 9,893.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.63 : 5,113.13 = 5,113.13 : x
  2. Step 2: Convert to fraction form
    2,642.63/5,113.13 = 5,113.13/x
  3. Step 3: Cross multiply
    2,642.63x = 5,113.13 × 5,113.13
  4. Step 4: Simplify right side
    2,642.63x = 26,144,047.27
  5. Step 5: Solve for x
    x = 26,144,047.27/2,642.63
  6. Step 6: Final answer
    x = 9,893.21

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Why These Related Problems?

These problems maintain the same ratio (1.93) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.