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Finding the Fourth Proportional to 14,453.54, 21,683.24 and 8,216.54

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Solution

The fourth proportional to 14,453.54, 21,683.24 and 8,216.54 is: 12,326.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,453.54 : 21,683.24 = 8,216.54 : x
  2. Step 2: Convert to fraction form
    14,453.54/21,683.24 = 8,216.54/x
  3. Step 3: Cross multiply
    14,453.54x = 21,683.24 × 8,216.54
  4. Step 4: Simplify right side
    14,453.54x = 178,161,208.79
  5. Step 5: Solve for x
    x = 178,161,208.79/14,453.54
  6. Step 6: Final answer
    x = 12,326.48

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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.