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Finding the Third Proportional to 324 and 874.50

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Solution

The third proportional to 324 and 874.50 is: 2,360.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    324 : 874.50 = 874.50 : x
  2. Step 2: Convert to fraction form
    324/874.50 = 874.50/x
  3. Step 3: Cross multiply
    324x = 874.50 × 874.50
  4. Step 4: Simplify right side
    324x = 764,750.25
  5. Step 5: Solve for x
    x = 764,750.25/324
  6. Step 6: Final answer
    x = 2,360.34

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Why These Related Problems?

These problems maintain the same ratio (2.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.