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Finding the Fourth Proportional to 7,699.63, 11,550.18 and 2,152.98

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Solution

The fourth proportional to 7,699.63, 11,550.18 and 2,152.98 is: 3,229.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,699.63 : 11,550.18 = 2,152.98 : x
  2. Step 2: Convert to fraction form
    7,699.63/11,550.18 = 2,152.98/x
  3. Step 3: Cross multiply
    7,699.63x = 11,550.18 × 2,152.98
  4. Step 4: Simplify right side
    7,699.63x = 24,867,289.38
  5. Step 5: Solve for x
    x = 24,867,289.38/7,699.63
  6. Step 6: Final answer
    x = 3,229.67

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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.