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Finding the Fourth Proportional to 13,797.21, 20,684.10 and 5,483.10

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Solution

The fourth proportional to 13,797.21, 20,684.10 and 5,483.10 is: 8,219.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,797.21 : 20,684.10 = 5,483.10 : x
  2. Step 2: Convert to fraction form
    13,797.21/20,684.10 = 5,483.10/x
  3. Step 3: Cross multiply
    13,797.21x = 20,684.10 × 5,483.10
  4. Step 4: Simplify right side
    13,797.21x = 113,412,988.71
  5. Step 5: Solve for x
    x = 113,412,988.71/13,797.21
  6. Step 6: Final answer
    x = 8,219.99

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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.