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Finding the Fourth Proportional to 14,611.79, 21,912.73 and 4,748.63

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Solution

The fourth proportional to 14,611.79, 21,912.73 and 4,748.63 is: 7,121.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,611.79 : 21,912.73 = 4,748.63 : x
  2. Step 2: Convert to fraction form
    14,611.79/21,912.73 = 4,748.63/x
  3. Step 3: Cross multiply
    14,611.79x = 21,912.73 × 4,748.63
  4. Step 4: Simplify right side
    14,611.79x = 104,055,325.62
  5. Step 5: Solve for x
    x = 104,055,325.62/14,611.79
  6. Step 6: Final answer
    x = 7,121.33

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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.