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Finding the Fourth Proportional to 14,950.55, 20,631.90 and 8,236.42

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Solution

The fourth proportional to 14,950.55, 20,631.90 and 8,236.42 is: 11,366.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,950.55 : 20,631.90 = 8,236.42 : x
  2. Step 2: Convert to fraction form
    14,950.55/20,631.90 = 8,236.42/x
  3. Step 3: Cross multiply
    14,950.55x = 20,631.90 × 8,236.42
  4. Step 4: Simplify right side
    14,950.55x = 169,932,993.80
  5. Step 5: Solve for x
    x = 169,932,993.80/14,950.55
  6. Step 6: Final answer
    x = 11,366.34

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Double scale
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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.