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Finding the Third Proportional to 4,242.75 and 6,472.50

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Solution

The third proportional to 4,242.75 and 6,472.50 is: 9,874.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,242.75 : 6,472.50 = 6,472.50 : x
  2. Step 2: Convert to fraction form
    4,242.75/6,472.50 = 6,472.50/x
  3. Step 3: Cross multiply
    4,242.75x = 6,472.50 × 6,472.50
  4. Step 4: Simplify right side
    4,242.75x = 41,893,256.25
  5. Step 5: Solve for x
    x = 41,893,256.25/4,242.75
  6. Step 6: Final answer
    x = 9,874.08

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.