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Finding the Third Proportional to 707.50 and 995.50

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Solution

The third proportional to 707.50 and 995.50 is: 1,400.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    707.50 : 995.50 = 995.50 : x
  2. Step 2: Convert to fraction form
    707.50/995.50 = 995.50/x
  3. Step 3: Cross multiply
    707.50x = 995.50 × 995.50
  4. Step 4: Simplify right side
    707.50x = 991,020.25
  5. Step 5: Solve for x
    x = 991,020.25/707.50
  6. Step 6: Final answer
    x = 1,400.74

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.