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Finding the Fourth Proportional to 18,096.48, 24,976.35 and 12,128.94

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Solution

The fourth proportional to 18,096.48, 24,976.35 and 12,128.94 is: 16,740.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,096.48 : 24,976.35 = 12,128.94 : x
  2. Step 2: Convert to fraction form
    18,096.48/24,976.35 = 12,128.94/x
  3. Step 3: Cross multiply
    18,096.48x = 24,976.35 × 12,128.94
  4. Step 4: Simplify right side
    18,096.48x = 302,936,650.57
  5. Step 5: Solve for x
    x = 302,936,650.57/18,096.48
  6. Step 6: Final answer
    x = 16,740.09

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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.