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Finding the Fourth Proportional to 6,368.57, 8,786.22 and 4,693.98

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Solution

The fourth proportional to 6,368.57, 8,786.22 and 4,693.98 is: 6,475.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368.57 : 8,786.22 = 4,693.98 : x
  2. Step 2: Convert to fraction form
    6,368.57/8,786.22 = 4,693.98/x
  3. Step 3: Cross multiply
    6,368.57x = 8,786.22 × 4,693.98
  4. Step 4: Simplify right side
    6,368.57x = 41,242,382.71
  5. Step 5: Solve for x
    x = 41,242,382.71/6,368.57
  6. Step 6: Final answer
    x = 6,475.92

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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.