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Finding the Fourth Proportional to 14,361.89, 21,530.03 and 5,594.78

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Solution

The fourth proportional to 14,361.89, 21,530.03 and 5,594.78 is: 8,387.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,361.89 : 21,530.03 = 5,594.78 : x
  2. Step 2: Convert to fraction form
    14,361.89/21,530.03 = 5,594.78/x
  3. Step 3: Cross multiply
    14,361.89x = 21,530.03 × 5,594.78
  4. Step 4: Simplify right side
    14,361.89x = 120,455,645.62
  5. Step 5: Solve for x
    x = 120,455,645.62/14,361.89
  6. Step 6: Final answer
    x = 8,387.18

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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.