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Finding the Fourth Proportional to 8,492.60, 12,738.58 and 2,252.66

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Solution

The fourth proportional to 8,492.60, 12,738.58 and 2,252.66 is: 3,378.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,492.60 : 12,738.58 = 2,252.66 : x
  2. Step 2: Convert to fraction form
    8,492.60/12,738.58 = 2,252.66/x
  3. Step 3: Cross multiply
    8,492.60x = 12,738.58 × 2,252.66
  4. Step 4: Simplify right side
    8,492.60x = 28,695,689.62
  5. Step 5: Solve for x
    x = 28,695,689.62/8,492.60
  6. Step 6: Final answer
    x = 3,378.91

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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.