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Finding the Fourth Proportional to 14,793.02, 20,414.20 and 8,078.62

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Solution

The fourth proportional to 14,793.02, 20,414.20 and 8,078.62 is: 11,148.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,793.02 : 20,414.20 = 8,078.62 : x
  2. Step 2: Convert to fraction form
    14,793.02/20,414.20 = 8,078.62/x
  3. Step 3: Cross multiply
    14,793.02x = 20,414.20 × 8,078.62
  4. Step 4: Simplify right side
    14,793.02x = 164,918,564.40
  5. Step 5: Solve for x
    x = 164,918,564.40/14,793.02
  6. Step 6: Final answer
    x = 11,148.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.