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Finding the Fourth Proportional to 14,940.76, 20,617.04 and 8,653.54

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Solution

The fourth proportional to 14,940.76, 20,617.04 and 8,653.54 is: 11,941.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,940.76 : 20,617.04 = 8,653.54 : x
  2. Step 2: Convert to fraction form
    14,940.76/20,617.04 = 8,653.54/x
  3. Step 3: Cross multiply
    14,940.76x = 20,617.04 × 8,653.54
  4. Step 4: Simplify right side
    14,940.76x = 178,410,380.32
  5. Step 5: Solve for x
    x = 178,410,380.32/14,940.76
  6. Step 6: Final answer
    x = 11,941.19

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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.