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Finding the Fourth Proportional to 3,861.51, 5,786.60 and 3,302.93

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Solution

The fourth proportional to 3,861.51, 5,786.60 and 3,302.93 is: 4,949.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.51 : 5,786.60 = 3,302.93 : x
  2. Step 2: Convert to fraction form
    3,861.51/5,786.60 = 3,302.93/x
  3. Step 3: Cross multiply
    3,861.51x = 5,786.60 × 3,302.93
  4. Step 4: Simplify right side
    3,861.51x = 19,112,689.29
  5. Step 5: Solve for x
    x = 19,112,689.29/3,861.51
  6. Step 6: Final answer
    x = 4,949.54

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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.