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Finding the Fourth Proportional to 8,625.22, 12,927.01 and 3,689.06

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Solution

The fourth proportional to 8,625.22, 12,927.01 and 3,689.06 is: 5,528.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,625.22 : 12,927.01 = 3,689.06 : x
  2. Step 2: Convert to fraction form
    8,625.22/12,927.01 = 3,689.06/x
  3. Step 3: Cross multiply
    8,625.22x = 12,927.01 × 3,689.06
  4. Step 4: Simplify right side
    8,625.22x = 47,688,432.43
  5. Step 5: Solve for x
    x = 47,688,432.43/8,625.22
  6. Step 6: Final answer
    x = 5,528.95

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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.