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Finding the Fourth Proportional to 12,361.60, 18,537 and 3,596.32

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Solution

The fourth proportional to 12,361.60, 18,537 and 3,596.32 is: 5,392.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,361.60 : 18,537 = 3,596.32 : x
  2. Step 2: Convert to fraction form
    12,361.60/18,537 = 3,596.32/x
  3. Step 3: Cross multiply
    12,361.60x = 18,537 × 3,596.32
  4. Step 4: Simplify right side
    12,361.60x = 66,664,983.84
  5. Step 5: Solve for x
    x = 66,664,983.84/12,361.60
  6. Step 6: Final answer
    x = 5,392.91

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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.