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Finding the Fourth Proportional to 22,811.13, 34,216.74 and 7,228.71

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Solution

The fourth proportional to 22,811.13, 34,216.74 and 7,228.71 is: 10,843.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,811.13 : 34,216.74 = 7,228.71 : x
  2. Step 2: Convert to fraction form
    22,811.13/34,216.74 = 7,228.71/x
  3. Step 3: Cross multiply
    22,811.13x = 34,216.74 × 7,228.71
  4. Step 4: Simplify right side
    22,811.13x = 247,342,890.61
  5. Step 5: Solve for x
    x = 247,342,890.61/22,811.13
  6. Step 6: Final answer
    x = 10,843.08

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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.