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Finding the Fourth Proportional to 30,767.16, 46,163.70 and 18,311.16

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Solution

The fourth proportional to 30,767.16, 46,163.70 and 18,311.16 is: 27,474.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,767.16 : 46,163.70 = 18,311.16 : x
  2. Step 2: Convert to fraction form
    30,767.16/46,163.70 = 18,311.16/x
  3. Step 3: Cross multiply
    30,767.16x = 46,163.70 × 18,311.16
  4. Step 4: Simplify right side
    30,767.16x = 845,310,896.89
  5. Step 5: Solve for x
    x = 845,310,896.89/30,767.16
  6. Step 6: Final answer
    x = 27,474.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.