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Finding the Fourth Proportional to 14,453.76, 19,945.94 and 8,079.96

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Solution

The fourth proportional to 14,453.76, 19,945.94 and 8,079.96 is: 11,150.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,453.76 : 19,945.94 = 8,079.96 : x
  2. Step 2: Convert to fraction form
    14,453.76/19,945.94 = 8,079.96/x
  3. Step 3: Cross multiply
    14,453.76x = 19,945.94 × 8,079.96
  4. Step 4: Simplify right side
    14,453.76x = 161,162,356.96
  5. Step 5: Solve for x
    x = 161,162,356.96/14,453.76
  6. Step 6: Final answer
    x = 11,150.20

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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.