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Finding the Fourth Proportional to 2,608.56, 3,916.08 and 2,388.24

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Solution

The fourth proportional to 2,608.56, 3,916.08 and 2,388.24 is: 3,585.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,608.56 : 3,916.08 = 2,388.24 : x
  2. Step 2: Convert to fraction form
    2,608.56/3,916.08 = 2,388.24/x
  3. Step 3: Cross multiply
    2,608.56x = 3,916.08 × 2,388.24
  4. Step 4: Simplify right side
    2,608.56x = 9,352,538.90
  5. Step 5: Solve for x
    x = 9,352,538.90/2,608.56
  6. Step 6: Final answer
    x = 3,585.33

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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.