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Finding the Fourth Proportional to 7,182.07, 9,914.38 and 4,197.42

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Solution

The fourth proportional to 7,182.07, 9,914.38 and 4,197.42 is: 5,794.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.07 : 9,914.38 = 4,197.42 : x
  2. Step 2: Convert to fraction form
    7,182.07/9,914.38 = 4,197.42/x
  3. Step 3: Cross multiply
    7,182.07x = 9,914.38 × 4,197.42
  4. Step 4: Simplify right side
    7,182.07x = 41,614,806.41
  5. Step 5: Solve for x
    x = 41,614,806.41/7,182.07
  6. Step 6: Final answer
    x = 5,794.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.