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Finding the Fourth Proportional to 8,332.31, 12,504.62 and 3,949.79

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Solution

The fourth proportional to 8,332.31, 12,504.62 and 3,949.79 is: 5,927.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,332.31 : 12,504.62 = 3,949.79 : x
  2. Step 2: Convert to fraction form
    8,332.31/12,504.62 = 3,949.79/x
  3. Step 3: Cross multiply
    8,332.31x = 12,504.62 × 3,949.79
  4. Step 4: Simplify right side
    8,332.31x = 49,390,570.38
  5. Step 5: Solve for x
    x = 49,390,570.38/8,332.31
  6. Step 6: Final answer
    x = 5,927.59

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1.5x scale

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.