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Finding the Fourth Proportional to 8,318.83, 11,479.94 and 4,541.98

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Solution

The fourth proportional to 8,318.83, 11,479.94 and 4,541.98 is: 6,267.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.83 : 11,479.94 = 4,541.98 : x
  2. Step 2: Convert to fraction form
    8,318.83/11,479.94 = 4,541.98/x
  3. Step 3: Cross multiply
    8,318.83x = 11,479.94 × 4,541.98
  4. Step 4: Simplify right side
    8,318.83x = 52,141,657.88
  5. Step 5: Solve for x
    x = 52,141,657.88/8,318.83
  6. Step 6: Final answer
    x = 6,267.91

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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.