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Finding the Fourth Proportional to 23,449.70, 32,361.46 and 13,379.78

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Solution

The fourth proportional to 23,449.70, 32,361.46 and 13,379.78 is: 18,464.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,449.70 : 32,361.46 = 13,379.78 : x
  2. Step 2: Convert to fraction form
    23,449.70/32,361.46 = 13,379.78/x
  3. Step 3: Cross multiply
    23,449.70x = 32,361.46 × 13,379.78
  4. Step 4: Simplify right side
    23,449.70x = 432,989,215.28
  5. Step 5: Solve for x
    x = 432,989,215.28/23,449.70
  6. Step 6: Final answer
    x = 18,464.60

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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.