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Finding the Fourth Proportional to 13,968.73, 20,951.04 and 5,648.56

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Solution

The fourth proportional to 13,968.73, 20,951.04 and 5,648.56 is: 8,472.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.73 : 20,951.04 = 5,648.56 : x
  2. Step 2: Convert to fraction form
    13,968.73/20,951.04 = 5,648.56/x
  3. Step 3: Cross multiply
    13,968.73x = 20,951.04 × 5,648.56
  4. Step 4: Simplify right side
    13,968.73x = 118,343,220.62
  5. Step 5: Solve for x
    x = 118,343,220.62/13,968.73
  6. Step 6: Final answer
    x = 8,472.01

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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.