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Finding the Third Proportional to 835.50 and 988.50

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Solution

The third proportional to 835.50 and 988.50 is: 1,169.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.50 : 988.50 = 988.50 : x
  2. Step 2: Convert to fraction form
    835.50/988.50 = 988.50/x
  3. Step 3: Cross multiply
    835.50x = 988.50 × 988.50
  4. Step 4: Simplify right side
    835.50x = 977,132.25
  5. Step 5: Solve for x
    x = 977,132.25/835.50
  6. Step 6: Final answer
    x = 1,169.52

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.