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Finding the Third Proportional to 546 and 1,138.50

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Solution

The third proportional to 546 and 1,138.50 is: 2,373.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    546 : 1,138.50 = 1,138.50 : x
  2. Step 2: Convert to fraction form
    546/1,138.50 = 1,138.50/x
  3. Step 3: Cross multiply
    546x = 1,138.50 × 1,138.50
  4. Step 4: Simplify right side
    546x = 1,296,182.25
  5. Step 5: Solve for x
    x = 1,296,182.25/546
  6. Step 6: Final answer
    x = 2,373.96

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.