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Finding the Fourth Proportional to 14,609.90, 20,163.17 and 8,948.41

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Solution

The fourth proportional to 14,609.90, 20,163.17 and 8,948.41 is: 12,349.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,609.90 : 20,163.17 = 8,948.41 : x
  2. Step 2: Convert to fraction form
    14,609.90/20,163.17 = 8,948.41/x
  3. Step 3: Cross multiply
    14,609.90x = 20,163.17 × 8,948.41
  4. Step 4: Simplify right side
    14,609.90x = 180,428,284.02
  5. Step 5: Solve for x
    x = 180,428,284.02/14,609.90
  6. Step 6: Final answer
    x = 12,349.73

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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.