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Finding the Fourth Proportional to 13,568.80, 20,353.20 and 9,632.20

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Solution

The fourth proportional to 13,568.80, 20,353.20 and 9,632.20 is: 14,448.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,568.80 : 20,353.20 = 9,632.20 : x
  2. Step 2: Convert to fraction form
    13,568.80/20,353.20 = 9,632.20/x
  3. Step 3: Cross multiply
    13,568.80x = 20,353.20 × 9,632.20
  4. Step 4: Simplify right side
    13,568.80x = 196,046,093.04
  5. Step 5: Solve for x
    x = 196,046,093.04/13,568.80
  6. Step 6: Final answer
    x = 14,448.30

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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.