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Finding the Fourth Proportional to 3,524.72, 4,864.02 and 1,931.31

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Solution

The fourth proportional to 3,524.72, 4,864.02 and 1,931.31 is: 2,665.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,524.72 : 4,864.02 = 1,931.31 : x
  2. Step 2: Convert to fraction form
    3,524.72/4,864.02 = 1,931.31/x
  3. Step 3: Cross multiply
    3,524.72x = 4,864.02 × 1,931.31
  4. Step 4: Simplify right side
    3,524.72x = 9,393,930.47
  5. Step 5: Solve for x
    x = 9,393,930.47/3,524.72
  6. Step 6: Final answer
    x = 2,665.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.