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Finding the Fourth Proportional to 18,407.55, 27,639.02 and 11,044.96

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Solution

The fourth proportional to 18,407.55, 27,639.02 and 11,044.96 is: 16,584.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,407.55 : 27,639.02 = 11,044.96 : x
  2. Step 2: Convert to fraction form
    18,407.55/27,639.02 = 11,044.96/x
  3. Step 3: Cross multiply
    18,407.55x = 27,639.02 × 11,044.96
  4. Step 4: Simplify right side
    18,407.55x = 305,271,828.85
  5. Step 5: Solve for x
    x = 305,271,828.85/18,407.55
  6. Step 6: Final answer
    x = 16,584.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.