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Finding the Fourth Proportional to 6,242.93, 8,613.57 and 3,723.90

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Solution

The fourth proportional to 6,242.93, 8,613.57 and 3,723.90 is: 5,137.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,242.93 : 8,613.57 = 3,723.90 : x
  2. Step 2: Convert to fraction form
    6,242.93/8,613.57 = 3,723.90/x
  3. Step 3: Cross multiply
    6,242.93x = 8,613.57 × 3,723.90
  4. Step 4: Simplify right side
    6,242.93x = 32,076,073.32
  5. Step 5: Solve for x
    x = 32,076,073.32/6,242.93
  6. Step 6: Final answer
    x = 5,137.98

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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.