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Finding the Fourth Proportional to 13,244.53, 19,866.81 and 5,447.89

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Solution

The fourth proportional to 13,244.53, 19,866.81 and 5,447.89 is: 8,171.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,244.53 : 19,866.81 = 5,447.89 : x
  2. Step 2: Convert to fraction form
    13,244.53/19,866.81 = 5,447.89/x
  3. Step 3: Cross multiply
    13,244.53x = 19,866.81 × 5,447.89
  4. Step 4: Simplify right side
    13,244.53x = 108,232,195.53
  5. Step 5: Solve for x
    x = 108,232,195.53/13,244.53
  6. Step 6: Final answer
    x = 8,171.84

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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.