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Finding the Fourth Proportional to 8,566.66, 12,814.45 and 8,041.78

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Solution

The fourth proportional to 8,566.66, 12,814.45 and 8,041.78 is: 12,029.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,566.66 : 12,814.45 = 8,041.78 : x
  2. Step 2: Convert to fraction form
    8,566.66/12,814.45 = 8,041.78/x
  3. Step 3: Cross multiply
    8,566.66x = 12,814.45 × 8,041.78
  4. Step 4: Simplify right side
    8,566.66x = 103,051,028.87
  5. Step 5: Solve for x
    x = 103,051,028.87/8,566.66
  6. Step 6: Final answer
    x = 12,029.31

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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.