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Finding the Fourth Proportional to 3,861.63, 5,328.99 and 2,093.22

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Solution

The fourth proportional to 3,861.63, 5,328.99 and 2,093.22 is: 2,888.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.63 : 5,328.99 = 2,093.22 : x
  2. Step 2: Convert to fraction form
    3,861.63/5,328.99 = 2,093.22/x
  3. Step 3: Cross multiply
    3,861.63x = 5,328.99 × 2,093.22
  4. Step 4: Simplify right side
    3,861.63x = 11,154,748.45
  5. Step 5: Solve for x
    x = 11,154,748.45/3,861.63
  6. Step 6: Final answer
    x = 2,888.61

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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.