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Finding the Fourth Proportional to 14,964.63, 20,651.34 and 8,250.53

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Solution

The fourth proportional to 14,964.63, 20,651.34 and 8,250.53 is: 11,385.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,964.63 : 20,651.34 = 8,250.53 : x
  2. Step 2: Convert to fraction form
    14,964.63/20,651.34 = 8,250.53/x
  3. Step 3: Cross multiply
    14,964.63x = 20,651.34 × 8,250.53
  4. Step 4: Simplify right side
    14,964.63x = 170,384,381.48
  5. Step 5: Solve for x
    x = 170,384,381.48/14,964.63
  6. Step 6: Final answer
    x = 11,385.81

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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.