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Finding the Fourth Proportional to 17,940.80, 26,894.64 and 9,626.64

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Solution

The fourth proportional to 17,940.80, 26,894.64 and 9,626.64 is: 14,431.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,940.80 : 26,894.64 = 9,626.64 : x
  2. Step 2: Convert to fraction form
    17,940.80/26,894.64 = 9,626.64/x
  3. Step 3: Cross multiply
    17,940.80x = 26,894.64 × 9,626.64
  4. Step 4: Simplify right side
    17,940.80x = 258,905,017.21
  5. Step 5: Solve for x
    x = 258,905,017.21/17,940.80
  6. Step 6: Final answer
    x = 14,431.07

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1.5x scale

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.