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Finding the Fourth Proportional to 13,797.80, 20,663.64 and 7,548.44

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Solution

The fourth proportional to 13,797.80, 20,663.64 and 7,548.44 is: 11,304.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,797.80 : 20,663.64 = 7,548.44 : x
  2. Step 2: Convert to fraction form
    13,797.80/20,663.64 = 7,548.44/x
  3. Step 3: Cross multiply
    13,797.80x = 20,663.64 × 7,548.44
  4. Step 4: Simplify right side
    13,797.80x = 155,978,246.72
  5. Step 5: Solve for x
    x = 155,978,246.72/13,797.80
  6. Step 6: Final answer
    x = 11,304.57

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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.