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Finding the Fourth Proportional to 39,863.72, 59,790.72 and 16,487.12

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Solution

The fourth proportional to 39,863.72, 59,790.72 and 16,487.12 is: 24,728.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,863.72 : 59,790.72 = 16,487.12 : x
  2. Step 2: Convert to fraction form
    39,863.72/59,790.72 = 16,487.12/x
  3. Step 3: Cross multiply
    39,863.72x = 59,790.72 × 16,487.12
  4. Step 4: Simplify right side
    39,863.72x = 985,776,775.53
  5. Step 5: Solve for x
    x = 985,776,775.53/39,863.72
  6. Step 6: Final answer
    x = 24,728.67

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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.