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Finding the Fourth Proportional to 14,790.39, 20,410.95 and 8,825.52

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Solution

The fourth proportional to 14,790.39, 20,410.95 and 8,825.52 is: 12,179.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,790.39 : 20,410.95 = 8,825.52 : x
  2. Step 2: Convert to fraction form
    14,790.39/20,410.95 = 8,825.52/x
  3. Step 3: Cross multiply
    14,790.39x = 20,410.95 × 8,825.52
  4. Step 4: Simplify right side
    14,790.39x = 180,137,247.44
  5. Step 5: Solve for x
    x = 180,137,247.44/14,790.39
  6. Step 6: Final answer
    x = 12,179.34

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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.