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Finding the Fourth Proportional to 17,744.66, 26,616.95 and 7,220.40

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Solution

The fourth proportional to 17,744.66, 26,616.95 and 7,220.40 is: 10,830.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,744.66 : 26,616.95 = 7,220.40 : x
  2. Step 2: Convert to fraction form
    17,744.66/26,616.95 = 7,220.40/x
  3. Step 3: Cross multiply
    17,744.66x = 26,616.95 × 7,220.40
  4. Step 4: Simplify right side
    17,744.66x = 192,185,025.78
  5. Step 5: Solve for x
    x = 192,185,025.78/17,744.66
  6. Step 6: Final answer
    x = 10,830.58

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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.