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Finding the Third Proportional to 2,090 and 4,558

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Solution

The third proportional to 2,090 and 4,558 is: 9,940.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090 : 4,558 = 4,558 : x
  2. Step 2: Convert to fraction form
    2,090/4,558 = 4,558/x
  3. Step 3: Cross multiply
    2,090x = 4,558 × 4,558
  4. Step 4: Simplify right side
    2,090x = 20,775,364
  5. Step 5: Solve for x
    x = 20,775,364/2,090
  6. Step 6: Final answer
    x = 9,940.37

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.