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Finding the Fourth Proportional to 29,361.60, 40,519.04 and 16,786.64

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Solution

The fourth proportional to 29,361.60, 40,519.04 and 16,786.64 is: 23,165.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,361.60 : 40,519.04 = 16,786.64 : x
  2. Step 2: Convert to fraction form
    29,361.60/40,519.04 = 16,786.64/x
  3. Step 3: Cross multiply
    29,361.60x = 40,519.04 × 16,786.64
  4. Step 4: Simplify right side
    29,361.60x = 680,178,537.63
  5. Step 5: Solve for x
    x = 680,178,537.63/29,361.60
  6. Step 6: Final answer
    x = 23,165.58

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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.