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Finding the Fourth Proportional to 28,025.92, 38,674.02 and 15,450.67

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Solution

The fourth proportional to 28,025.92, 38,674.02 and 15,450.67 is: 21,320.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025.92 : 38,674.02 = 15,450.67 : x
  2. Step 2: Convert to fraction form
    28,025.92/38,674.02 = 15,450.67/x
  3. Step 3: Cross multiply
    28,025.92x = 38,674.02 × 15,450.67
  4. Step 4: Simplify right side
    28,025.92x = 597,539,520.59
  5. Step 5: Solve for x
    x = 597,539,520.59/28,025.92
  6. Step 6: Final answer
    x = 21,320.96

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Half scale
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Double scale
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Similar ratio
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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.