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Finding the Third Proportional to 990.98 and 1,537.73

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Solution

The third proportional to 990.98 and 1,537.73 is: 2,386.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    990.98 : 1,537.73 = 1,537.73 : x
  2. Step 2: Convert to fraction form
    990.98/1,537.73 = 1,537.73/x
  3. Step 3: Cross multiply
    990.98x = 1,537.73 × 1,537.73
  4. Step 4: Simplify right side
    990.98x = 2,364,627.01
  5. Step 5: Solve for x
    x = 2,364,627.01/990.98
  6. Step 6: Final answer
    x = 2,386.14

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.