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Finding the Third Proportional to 698.63 and 1,047.94

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Solution

The third proportional to 698.63 and 1,047.94 is: 1,571.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    698.63 : 1,047.94 = 1,047.94 : x
  2. Step 2: Convert to fraction form
    698.63/1,047.94 = 1,047.94/x
  3. Step 3: Cross multiply
    698.63x = 1,047.94 × 1,047.94
  4. Step 4: Simplify right side
    698.63x = 1,098,173.00
  5. Step 5: Solve for x
    x = 1,098,173.00/698.63
  6. Step 6: Final answer
    x = 1,571.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.