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Finding the Fourth Proportional to 3,679.01, 5,072.79 and 2,932.39

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Solution

The fourth proportional to 3,679.01, 5,072.79 and 2,932.39 is: 4,043.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.01 : 5,072.79 = 2,932.39 : x
  2. Step 2: Convert to fraction form
    3,679.01/5,072.79 = 2,932.39/x
  3. Step 3: Cross multiply
    3,679.01x = 5,072.79 × 2,932.39
  4. Step 4: Simplify right side
    3,679.01x = 14,875,398.67
  5. Step 5: Solve for x
    x = 14,875,398.67/3,679.01
  6. Step 6: Final answer
    x = 4,043.32

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1.5x scale

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.