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Finding the Fourth Proportional to 2,618.01, 3,926.54 and 1,057.95

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Solution

The fourth proportional to 2,618.01, 3,926.54 and 1,057.95 is: 1,586.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.01 : 3,926.54 = 1,057.95 : x
  2. Step 2: Convert to fraction form
    2,618.01/3,926.54 = 1,057.95/x
  3. Step 3: Cross multiply
    2,618.01x = 3,926.54 × 1,057.95
  4. Step 4: Simplify right side
    2,618.01x = 4,154,082.99
  5. Step 5: Solve for x
    x = 4,154,082.99/2,618.01
  6. Step 6: Final answer
    x = 1,586.73

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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.