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Finding the Fourth Proportional to 14,447.92, 21,662.80 and 5,672.64

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Solution

The fourth proportional to 14,447.92, 21,662.80 and 5,672.64 is: 8,505.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,447.92 : 21,662.80 = 5,672.64 : x
  2. Step 2: Convert to fraction form
    14,447.92/21,662.80 = 5,672.64/x
  3. Step 3: Cross multiply
    14,447.92x = 21,662.80 × 5,672.64
  4. Step 4: Simplify right side
    14,447.92x = 122,885,265.79
  5. Step 5: Solve for x
    x = 122,885,265.79/14,447.92
  6. Step 6: Final answer
    x = 8,505.39

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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.