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Finding the Fourth Proportional to 25,491.99, 35,179.17 and 14,879.56

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Solution

The fourth proportional to 25,491.99, 35,179.17 and 14,879.56 is: 20,533.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,491.99 : 35,179.17 = 14,879.56 : x
  2. Step 2: Convert to fraction form
    25,491.99/35,179.17 = 14,879.56/x
  3. Step 3: Cross multiply
    25,491.99x = 35,179.17 × 14,879.56
  4. Step 4: Simplify right side
    25,491.99x = 523,450,570.77
  5. Step 5: Solve for x
    x = 523,450,570.77/25,491.99
  6. Step 6: Final answer
    x = 20,533.92

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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.