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Finding the Fourth Proportional to 14,125.92, 21,194.88 and 7,102.23

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Solution

The fourth proportional to 14,125.92, 21,194.88 and 7,102.23 is: 10,656.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,125.92 : 21,194.88 = 7,102.23 : x
  2. Step 2: Convert to fraction form
    14,125.92/21,194.88 = 7,102.23/x
  3. Step 3: Cross multiply
    14,125.92x = 21,194.88 × 7,102.23
  4. Step 4: Simplify right side
    14,125.92x = 150,530,912.58
  5. Step 5: Solve for x
    x = 150,530,912.58/14,125.92
  6. Step 6: Final answer
    x = 10,656.36

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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.