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Finding the Fourth Proportional to 9,173.17, 13,759.76 and 4,789.61

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Solution

The fourth proportional to 9,173.17, 13,759.76 and 4,789.61 is: 7,184.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,173.17 : 13,759.76 = 4,789.61 : x
  2. Step 2: Convert to fraction form
    9,173.17/13,759.76 = 4,789.61/x
  3. Step 3: Cross multiply
    9,173.17x = 13,759.76 × 4,789.61
  4. Step 4: Simplify right side
    9,173.17x = 65,903,884.09
  5. Step 5: Solve for x
    x = 65,903,884.09/9,173.17
  6. Step 6: Final answer
    x = 7,184.42

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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.