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Finding the Third Proportional to 798 and 877.50

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Solution

The third proportional to 798 and 877.50 is: 964.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    798 : 877.50 = 877.50 : x
  2. Step 2: Convert to fraction form
    798/877.50 = 877.50/x
  3. Step 3: Cross multiply
    798x = 877.50 × 877.50
  4. Step 4: Simplify right side
    798x = 770,006.25
  5. Step 5: Solve for x
    x = 770,006.25/798
  6. Step 6: Final answer
    x = 964.92

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