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Finding the Fourth Proportional to 1,433.46, 2,147.10 and 968.67

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Solution

The fourth proportional to 1,433.46, 2,147.10 and 968.67 is: 1,450.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433.46 : 2,147.10 = 968.67 : x
  2. Step 2: Convert to fraction form
    1,433.46/2,147.10 = 968.67/x
  3. Step 3: Cross multiply
    1,433.46x = 2,147.10 × 968.67
  4. Step 4: Simplify right side
    1,433.46x = 2,079,831.36
  5. Step 5: Solve for x
    x = 2,079,831.36/1,433.46
  6. Step 6: Final answer
    x = 1,450.92

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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.