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Finding the Fourth Proportional to 8,599.66, 12,900.63 and 3,404.32

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Solution

The fourth proportional to 8,599.66, 12,900.63 and 3,404.32 is: 5,106.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,599.66 : 12,900.63 = 3,404.32 : x
  2. Step 2: Convert to fraction form
    8,599.66/12,900.63 = 3,404.32/x
  3. Step 3: Cross multiply
    8,599.66x = 12,900.63 × 3,404.32
  4. Step 4: Simplify right side
    8,599.66x = 43,917,872.72
  5. Step 5: Solve for x
    x = 43,917,872.72/8,599.66
  6. Step 6: Final answer
    x = 5,106.93

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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.