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Finding the Fourth Proportional to 17,963.55, 26,944.68 and 4,815.21

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Solution

The fourth proportional to 17,963.55, 26,944.68 and 4,815.21 is: 7,222.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,963.55 : 26,944.68 = 4,815.21 : x
  2. Step 2: Convert to fraction form
    17,963.55/26,944.68 = 4,815.21/x
  3. Step 3: Cross multiply
    17,963.55x = 26,944.68 × 4,815.21
  4. Step 4: Simplify right side
    17,963.55x = 129,744,292.58
  5. Step 5: Solve for x
    x = 129,744,292.58/17,963.55
  6. Step 6: Final answer
    x = 7,222.64

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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.