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Finding the Fourth Proportional to 8,656.22, 12,979.71 and 4,492.04

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Solution

The fourth proportional to 8,656.22, 12,979.71 and 4,492.04 is: 6,735.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.22 : 12,979.71 = 4,492.04 : x
  2. Step 2: Convert to fraction form
    8,656.22/12,979.71 = 4,492.04/x
  3. Step 3: Cross multiply
    8,656.22x = 12,979.71 × 4,492.04
  4. Step 4: Simplify right side
    8,656.22x = 58,305,311.61
  5. Step 5: Solve for x
    x = 58,305,311.61/8,656.22
  6. Step 6: Final answer
    x = 6,735.66

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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.