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Finding the Fourth Proportional to 13,403.10, 20,103.80 and 4,043.44

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Solution

The fourth proportional to 13,403.10, 20,103.80 and 4,043.44 is: 6,064.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.10 : 20,103.80 = 4,043.44 : x
  2. Step 2: Convert to fraction form
    13,403.10/20,103.80 = 4,043.44/x
  3. Step 3: Cross multiply
    13,403.10x = 20,103.80 × 4,043.44
  4. Step 4: Simplify right side
    13,403.10x = 81,288,509.07
  5. Step 5: Solve for x
    x = 81,288,509.07/13,403.10
  6. Step 6: Final answer
    x = 6,064.90

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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.