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Finding the Fourth Proportional to 18,160.32, 25,100.64 and 16,760.64

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Solution

The fourth proportional to 18,160.32, 25,100.64 and 16,760.64 is: 23,166.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,160.32 : 25,100.64 = 16,760.64 : x
  2. Step 2: Convert to fraction form
    18,160.32/25,100.64 = 16,760.64/x
  3. Step 3: Cross multiply
    18,160.32x = 25,100.64 × 16,760.64
  4. Step 4: Simplify right side
    18,160.32x = 420,702,790.81
  5. Step 5: Solve for x
    x = 420,702,790.81/18,160.32
  6. Step 6: Final answer
    x = 23,166.05

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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.