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Finding the Fourth Proportional to 17,722.55, 26,583.86 and 16,639.98

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Solution

The fourth proportional to 17,722.55, 26,583.86 and 16,639.98 is: 24,960.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,722.55 : 26,583.86 = 16,639.98 : x
  2. Step 2: Convert to fraction form
    17,722.55/26,583.86 = 16,639.98/x
  3. Step 3: Cross multiply
    17,722.55x = 26,583.86 × 16,639.98
  4. Step 4: Simplify right side
    17,722.55x = 442,354,815.52
  5. Step 5: Solve for x
    x = 442,354,815.52/17,722.55
  6. Step 6: Final answer
    x = 24,960.01

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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.