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Finding the Third Proportional to 698.50 and 1,537

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Solution

The third proportional to 698.50 and 1,537 is: 3,382.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    698.50 : 1,537 = 1,537 : x
  2. Step 2: Convert to fraction form
    698.50/1,537 = 1,537/x
  3. Step 3: Cross multiply
    698.50x = 1,537 × 1,537
  4. Step 4: Simplify right side
    698.50x = 2,362,369
  5. Step 5: Solve for x
    x = 2,362,369/698.50
  6. Step 6: Final answer
    x = 3,382.06

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These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.