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Finding the Fourth Proportional to 17,626.52, 26,440.70 and 4,479

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Solution

The fourth proportional to 17,626.52, 26,440.70 and 4,479 is: 6,718.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,626.52 : 26,440.70 = 4,479 : x
  2. Step 2: Convert to fraction form
    17,626.52/26,440.70 = 4,479/x
  3. Step 3: Cross multiply
    17,626.52x = 26,440.70 × 4,479
  4. Step 4: Simplify right side
    17,626.52x = 118,427,895.30
  5. Step 5: Solve for x
    x = 118,427,895.30/17,626.52
  6. Step 6: Final answer
    x = 6,718.73

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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.