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Finding the Fourth Proportional to 3,823.68, 5,726.96 and 3,323.68

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Solution

The fourth proportional to 3,823.68, 5,726.96 and 3,323.68 is: 4,978.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,823.68 : 5,726.96 = 3,323.68 : x
  2. Step 2: Convert to fraction form
    3,823.68/5,726.96 = 3,323.68/x
  3. Step 3: Cross multiply
    3,823.68x = 5,726.96 × 3,323.68
  4. Step 4: Simplify right side
    3,823.68x = 19,034,582.41
  5. Step 5: Solve for x
    x = 19,034,582.41/3,823.68
  6. Step 6: Final answer
    x = 4,978.08

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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.