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Finding the Fourth Proportional to 13,193.60, 19,793.10 and 4,434.80

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Solution

The fourth proportional to 13,193.60, 19,793.10 and 4,434.80 is: 6,653.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,193.60 : 19,793.10 = 4,434.80 : x
  2. Step 2: Convert to fraction form
    13,193.60/19,793.10 = 4,434.80/x
  3. Step 3: Cross multiply
    13,193.60x = 19,793.10 × 4,434.80
  4. Step 4: Simplify right side
    13,193.60x = 87,778,439.88
  5. Step 5: Solve for x
    x = 87,778,439.88/13,193.60
  6. Step 6: Final answer
    x = 6,653.11

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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.