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Finding the Fourth Proportional to 14,660.10, 20,230.95 and 8,609.16

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Solution

The fourth proportional to 14,660.10, 20,230.95 and 8,609.16 is: 11,880.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,660.10 : 20,230.95 = 8,609.16 : x
  2. Step 2: Convert to fraction form
    14,660.10/20,230.95 = 8,609.16/x
  3. Step 3: Cross multiply
    14,660.10x = 20,230.95 × 8,609.16
  4. Step 4: Simplify right side
    14,660.10x = 174,171,485.50
  5. Step 5: Solve for x
    x = 174,171,485.50/14,660.10
  6. Step 6: Final answer
    x = 11,880.65

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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.