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Finding the Third Proportional to 7,152.75 and 9,828

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Solution

The third proportional to 7,152.75 and 9,828 is: 13,503.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152.75 : 9,828 = 9,828 : x
  2. Step 2: Convert to fraction form
    7,152.75/9,828 = 9,828/x
  3. Step 3: Cross multiply
    7,152.75x = 9,828 × 9,828
  4. Step 4: Simplify right side
    7,152.75x = 96,589,584
  5. Step 5: Solve for x
    x = 96,589,584/7,152.75
  6. Step 6: Final answer
    x = 13,503.84

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.