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Finding the Fourth Proportional to 13,801.53, 20,699.39 and 4,442.39

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Solution

The fourth proportional to 13,801.53, 20,699.39 and 4,442.39 is: 6,662.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,801.53 : 20,699.39 = 4,442.39 : x
  2. Step 2: Convert to fraction form
    13,801.53/20,699.39 = 4,442.39/x
  3. Step 3: Cross multiply
    13,801.53x = 20,699.39 × 4,442.39
  4. Step 4: Simplify right side
    13,801.53x = 91,954,670.75
  5. Step 5: Solve for x
    x = 91,954,670.75/13,801.53
  6. Step 6: Final answer
    x = 6,662.64

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1.5x scale

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.