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Finding the Fourth Proportional to 14,177.55, 21,268.06 and 4,819.11

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Solution

The fourth proportional to 14,177.55, 21,268.06 and 4,819.11 is: 7,229.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,177.55 : 21,268.06 = 4,819.11 : x
  2. Step 2: Convert to fraction form
    14,177.55/21,268.06 = 4,819.11/x
  3. Step 3: Cross multiply
    14,177.55x = 21,268.06 × 4,819.11
  4. Step 4: Simplify right side
    14,177.55x = 102,493,120.63
  5. Step 5: Solve for x
    x = 102,493,120.63/14,177.55
  6. Step 6: Final answer
    x = 7,229.25

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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.