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Finding the Fourth Proportional to 2,595.78, 3,896.10 and 1,861.92

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Solution

The fourth proportional to 2,595.78, 3,896.10 and 1,861.92 is: 2,794.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,595.78 : 3,896.10 = 1,861.92 : x
  2. Step 2: Convert to fraction form
    2,595.78/3,896.10 = 1,861.92/x
  3. Step 3: Cross multiply
    2,595.78x = 3,896.10 × 1,861.92
  4. Step 4: Simplify right side
    2,595.78x = 7,254,226.51
  5. Step 5: Solve for x
    x = 7,254,226.51/2,595.78
  6. Step 6: Final answer
    x = 2,794.62

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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.