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Finding the Fourth Proportional to 8,889.59, 13,334.22 and 2,653.83

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Solution

The fourth proportional to 8,889.59, 13,334.22 and 2,653.83 is: 3,980.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.59 : 13,334.22 = 2,653.83 : x
  2. Step 2: Convert to fraction form
    8,889.59/13,334.22 = 2,653.83/x
  3. Step 3: Cross multiply
    8,889.59x = 13,334.22 × 2,653.83
  4. Step 4: Simplify right side
    8,889.59x = 35,386,706.46
  5. Step 5: Solve for x
    x = 35,386,706.46/8,889.59
  6. Step 6: Final answer
    x = 3,980.69

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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.