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Finding the Fourth Proportional to 14,964.99, 20,650.74 and 8,250.26

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Solution

The fourth proportional to 14,964.99, 20,650.74 and 8,250.26 is: 11,384.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,964.99 : 20,650.74 = 8,250.26 : x
  2. Step 2: Convert to fraction form
    14,964.99/20,650.74 = 8,250.26/x
  3. Step 3: Cross multiply
    14,964.99x = 20,650.74 × 8,250.26
  4. Step 4: Simplify right side
    14,964.99x = 170,373,870.94
  5. Step 5: Solve for x
    x = 170,373,870.94/14,964.99
  6. Step 6: Final answer
    x = 11,384.83

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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.