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Finding the Fourth Proportional to 11,843.92, 17,762.79 and 3,521.71

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Solution

The fourth proportional to 11,843.92, 17,762.79 and 3,521.71 is: 5,281.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,843.92 : 17,762.79 = 3,521.71 : x
  2. Step 2: Convert to fraction form
    11,843.92/17,762.79 = 3,521.71/x
  3. Step 3: Cross multiply
    11,843.92x = 17,762.79 × 3,521.71
  4. Step 4: Simplify right side
    11,843.92x = 62,555,430.58
  5. Step 5: Solve for x
    x = 62,555,430.58/11,843.92
  6. Step 6: Final answer
    x = 5,281.65

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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.