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Finding the Fourth Proportional to 5,769.36, 8,655.12 and 1,874.88

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Solution

The fourth proportional to 5,769.36, 8,655.12 and 1,874.88 is: 2,812.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,769.36 : 8,655.12 = 1,874.88 : x
  2. Step 2: Convert to fraction form
    5,769.36/8,655.12 = 1,874.88/x
  3. Step 3: Cross multiply
    5,769.36x = 8,655.12 × 1,874.88
  4. Step 4: Simplify right side
    5,769.36x = 16,227,311.39
  5. Step 5: Solve for x
    x = 16,227,311.39/5,769.36
  6. Step 6: Final answer
    x = 2,812.67

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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.