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Finding the Fourth Proportional to 5,958.40, 8,937.60 and 4,578.70

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Solution

The fourth proportional to 5,958.40, 8,937.60 and 4,578.70 is: 6,868.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,958.40 : 8,937.60 = 4,578.70 : x
  2. Step 2: Convert to fraction form
    5,958.40/8,937.60 = 4,578.70/x
  3. Step 3: Cross multiply
    5,958.40x = 8,937.60 × 4,578.70
  4. Step 4: Simplify right side
    5,958.40x = 40,922,589.12
  5. Step 5: Solve for x
    x = 40,922,589.12/5,958.40
  6. Step 6: Final answer
    x = 6,868.05

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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.