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Finding the Fourth Proportional to 4,950.31, 6,831.16 and 2,711.76

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Solution

The fourth proportional to 4,950.31, 6,831.16 and 2,711.76 is: 3,742.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,950.31 : 6,831.16 = 2,711.76 : x
  2. Step 2: Convert to fraction form
    4,950.31/6,831.16 = 2,711.76/x
  3. Step 3: Cross multiply
    4,950.31x = 6,831.16 × 2,711.76
  4. Step 4: Simplify right side
    4,950.31x = 18,524,466.44
  5. Step 5: Solve for x
    x = 18,524,466.44/4,950.31
  6. Step 6: Final answer
    x = 3,742.08

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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.