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Finding the Third Proportional to 7,318.50 and 9,513

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Solution

The third proportional to 7,318.50 and 9,513 is: 12,365.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.50 : 9,513 = 9,513 : x
  2. Step 2: Convert to fraction form
    7,318.50/9,513 = 9,513/x
  3. Step 3: Cross multiply
    7,318.50x = 9,513 × 9,513
  4. Step 4: Simplify right side
    7,318.50x = 90,497,169
  5. Step 5: Solve for x
    x = 90,497,169/7,318.50
  6. Step 6: Final answer
    x = 12,365.54

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.