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Finding the Third Proportional to 4,636 and 7,170.50

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Solution

The third proportional to 4,636 and 7,170.50 is: 11,090.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,636 : 7,170.50 = 7,170.50 : x
  2. Step 2: Convert to fraction form
    4,636/7,170.50 = 7,170.50/x
  3. Step 3: Cross multiply
    4,636x = 7,170.50 × 7,170.50
  4. Step 4: Simplify right side
    4,636x = 51,416,070.25
  5. Step 5: Solve for x
    x = 51,416,070.25/4,636
  6. Step 6: Final answer
    x = 11,090.61

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.