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Finding the Fourth Proportional to 15,604.70, 23,318.85 and 11,230.70

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Solution

The fourth proportional to 15,604.70, 23,318.85 and 11,230.70 is: 16,782.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,604.70 : 23,318.85 = 11,230.70 : x
  2. Step 2: Convert to fraction form
    15,604.70/23,318.85 = 11,230.70/x
  3. Step 3: Cross multiply
    15,604.70x = 23,318.85 × 11,230.70
  4. Step 4: Simplify right side
    15,604.70x = 261,886,952.54
  5. Step 5: Solve for x
    x = 261,886,952.54/15,604.70
  6. Step 6: Final answer
    x = 16,782.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.