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Finding the Fourth Proportional to 8,702.55, 13,035.60 and 6,844.86

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Solution

The fourth proportional to 8,702.55, 13,035.60 and 6,844.86 is: 10,252.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.55 : 13,035.60 = 6,844.86 : x
  2. Step 2: Convert to fraction form
    8,702.55/13,035.60 = 6,844.86/x
  3. Step 3: Cross multiply
    8,702.55x = 13,035.60 × 6,844.86
  4. Step 4: Simplify right side
    8,702.55x = 89,226,857.02
  5. Step 5: Solve for x
    x = 89,226,857.02/8,702.55
  6. Step 6: Final answer
    x = 10,252.96

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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.