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Finding the Fourth Proportional to 2,558.16, 3,837.51 and 914.85

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Solution

The fourth proportional to 2,558.16, 3,837.51 and 914.85 is: 1,372.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.16 : 3,837.51 = 914.85 : x
  2. Step 2: Convert to fraction form
    2,558.16/3,837.51 = 914.85/x
  3. Step 3: Cross multiply
    2,558.16x = 3,837.51 × 914.85
  4. Step 4: Simplify right side
    2,558.16x = 3,510,746.02
  5. Step 5: Solve for x
    x = 3,510,746.02/2,558.16
  6. Step 6: Final answer
    x = 1,372.37

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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.