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Finding the Fourth Proportional to 13,884.68, 20,835.12 and 5,568.68

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Solution

The fourth proportional to 13,884.68, 20,835.12 and 5,568.68 is: 8,356.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,884.68 : 20,835.12 = 5,568.68 : x
  2. Step 2: Convert to fraction form
    13,884.68/20,835.12 = 5,568.68/x
  3. Step 3: Cross multiply
    13,884.68x = 20,835.12 × 5,568.68
  4. Step 4: Simplify right side
    13,884.68x = 116,024,116.04
  5. Step 5: Solve for x
    x = 116,024,116.04/13,884.68
  6. Step 6: Final answer
    x = 8,356.27

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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.