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Finding the Fourth Proportional to 13,894.59, 20,845.53 and 5,573.10

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Solution

The fourth proportional to 13,894.59, 20,845.53 and 5,573.10 is: 8,361.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,894.59 : 20,845.53 = 5,573.10 : x
  2. Step 2: Convert to fraction form
    13,894.59/20,845.53 = 5,573.10/x
  3. Step 3: Cross multiply
    13,894.59x = 20,845.53 × 5,573.10
  4. Step 4: Simplify right side
    13,894.59x = 116,174,223.24
  5. Step 5: Solve for x
    x = 116,174,223.24/13,894.59
  6. Step 6: Final answer
    x = 8,361.11

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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.