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Finding the Fourth Proportional to 14,293.92, 21,441.92 and 3,905.44

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Solution

The fourth proportional to 14,293.92, 21,441.92 and 3,905.44 is: 5,858.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,293.92 : 21,441.92 = 3,905.44 : x
  2. Step 2: Convert to fraction form
    14,293.92/21,441.92 = 3,905.44/x
  3. Step 3: Cross multiply
    14,293.92x = 21,441.92 × 3,905.44
  4. Step 4: Simplify right side
    14,293.92x = 83,740,132.04
  5. Step 5: Solve for x
    x = 83,740,132.04/14,293.92
  6. Step 6: Final answer
    x = 5,858.44

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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.