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Finding the Fourth Proportional to 38,389.88, 57,586.88 and 12,096.68

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Solution

The fourth proportional to 38,389.88, 57,586.88 and 12,096.68 is: 18,145.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,389.88 : 57,586.88 = 12,096.68 : x
  2. Step 2: Convert to fraction form
    38,389.88/57,586.88 = 12,096.68/x
  3. Step 3: Cross multiply
    38,389.88x = 57,586.88 × 12,096.68
  4. Step 4: Simplify right side
    38,389.88x = 696,610,059.56
  5. Step 5: Solve for x
    x = 696,610,059.56/38,389.88
  6. Step 6: Final answer
    x = 18,145.67

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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.