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Finding the Fourth Proportional to 4,246.40, 6,369.12 and 1,168

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Solution

The fourth proportional to 4,246.40, 6,369.12 and 1,168 is: 1,751.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,246.40 : 6,369.12 = 1,168 : x
  2. Step 2: Convert to fraction form
    4,246.40/6,369.12 = 1,168/x
  3. Step 3: Cross multiply
    4,246.40x = 6,369.12 × 1,168
  4. Step 4: Simplify right side
    4,246.40x = 7,439,132.16
  5. Step 5: Solve for x
    x = 7,439,132.16/4,246.40
  6. Step 6: Final answer
    x = 1,751.87

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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.