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Finding the Third Proportional to 3,432.75 and 4,905.75

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Solution

The third proportional to 3,432.75 and 4,905.75 is: 7,010.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.75 : 4,905.75 = 4,905.75 : x
  2. Step 2: Convert to fraction form
    3,432.75/4,905.75 = 4,905.75/x
  3. Step 3: Cross multiply
    3,432.75x = 4,905.75 × 4,905.75
  4. Step 4: Simplify right side
    3,432.75x = 24,066,383.06
  5. Step 5: Solve for x
    x = 24,066,383.06/3,432.75
  6. Step 6: Final answer
    x = 7,010.82

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.