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Finding the Fourth Proportional to 8,068.77, 11,133.87 and 4,709.15

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Solution

The fourth proportional to 8,068.77, 11,133.87 and 4,709.15 is: 6,498.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,068.77 : 11,133.87 = 4,709.15 : x
  2. Step 2: Convert to fraction form
    8,068.77/11,133.87 = 4,709.15/x
  3. Step 3: Cross multiply
    8,068.77x = 11,133.87 × 4,709.15
  4. Step 4: Simplify right side
    8,068.77x = 52,431,103.52
  5. Step 5: Solve for x
    x = 52,431,103.52/8,068.77
  6. Step 6: Final answer
    x = 6,498.03

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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.