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Finding the Fourth Proportional to 14,361.62, 21,542.40 and 5,602.68

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Solution

The fourth proportional to 14,361.62, 21,542.40 and 5,602.68 is: 8,404.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,361.62 : 21,542.40 = 5,602.68 : x
  2. Step 2: Convert to fraction form
    14,361.62/21,542.40 = 5,602.68/x
  3. Step 3: Cross multiply
    14,361.62x = 21,542.40 × 5,602.68
  4. Step 4: Simplify right side
    14,361.62x = 120,695,173.63
  5. Step 5: Solve for x
    x = 120,695,173.63/14,361.62
  6. Step 6: Final answer
    x = 8,404.01

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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.