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Finding the Fourth Proportional to 8,559.52, 12,840.08 and 3,364.18

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Solution

The fourth proportional to 8,559.52, 12,840.08 and 3,364.18 is: 5,046.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.52 : 12,840.08 = 3,364.18 : x
  2. Step 2: Convert to fraction form
    8,559.52/12,840.08 = 3,364.18/x
  3. Step 3: Cross multiply
    8,559.52x = 12,840.08 × 3,364.18
  4. Step 4: Simplify right side
    8,559.52x = 43,196,291.41
  5. Step 5: Solve for x
    x = 43,196,291.41/8,559.52
  6. Step 6: Final answer
    x = 5,046.58

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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.