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Finding the Fourth Proportional to 5,792.81, 8,690.24 and 2,100.20

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Solution

The fourth proportional to 5,792.81, 8,690.24 and 2,100.20 is: 3,150.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,792.81 : 8,690.24 = 2,100.20 : x
  2. Step 2: Convert to fraction form
    5,792.81/8,690.24 = 2,100.20/x
  3. Step 3: Cross multiply
    5,792.81x = 8,690.24 × 2,100.20
  4. Step 4: Simplify right side
    5,792.81x = 18,251,192.03
  5. Step 5: Solve for x
    x = 18,251,192.03/5,792.81
  6. Step 6: Final answer
    x = 3,150.67

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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.