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Finding the Fourth Proportional to 3,242.75, 4,864.84 and 934.07

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Solution

The fourth proportional to 3,242.75, 4,864.84 and 934.07 is: 1,401.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,242.75 : 4,864.84 = 934.07 : x
  2. Step 2: Convert to fraction form
    3,242.75/4,864.84 = 934.07/x
  3. Step 3: Cross multiply
    3,242.75x = 4,864.84 × 934.07
  4. Step 4: Simplify right side
    3,242.75x = 4,544,076.77
  5. Step 5: Solve for x
    x = 4,544,076.77/3,242.75
  6. Step 6: Final answer
    x = 1,401.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.