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Finding the Fourth Proportional to 14,609.44, 20,163.55 and 14,123.44

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Solution

The fourth proportional to 14,609.44, 20,163.55 and 14,123.44 is: 19,492.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,609.44 : 20,163.55 = 14,123.44 : x
  2. Step 2: Convert to fraction form
    14,609.44/20,163.55 = 14,123.44/x
  3. Step 3: Cross multiply
    14,609.44x = 20,163.55 × 14,123.44
  4. Step 4: Simplify right side
    14,609.44x = 284,778,688.61
  5. Step 5: Solve for x
    x = 284,778,688.61/14,609.44
  6. Step 6: Final answer
    x = 19,492.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.