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Finding the Fourth Proportional to 8,506.08, 12,765.36 and 5,583.36

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Solution

The fourth proportional to 8,506.08, 12,765.36 and 5,583.36 is: 8,379.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,506.08 : 12,765.36 = 5,583.36 : x
  2. Step 2: Convert to fraction form
    8,506.08/12,765.36 = 5,583.36/x
  3. Step 3: Cross multiply
    8,506.08x = 12,765.36 × 5,583.36
  4. Step 4: Simplify right side
    8,506.08x = 71,273,600.41
  5. Step 5: Solve for x
    x = 71,273,600.41/8,506.08
  6. Step 6: Final answer
    x = 8,379.14

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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.