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Finding the Fourth Proportional to 3,085.56, 4,623.93 and 2,919.24

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Solution

The fourth proportional to 3,085.56, 4,623.93 and 2,919.24 is: 4,374.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.56 : 4,623.93 = 2,919.24 : x
  2. Step 2: Convert to fraction form
    3,085.56/4,623.93 = 2,919.24/x
  3. Step 3: Cross multiply
    3,085.56x = 4,623.93 × 2,919.24
  4. Step 4: Simplify right side
    3,085.56x = 13,498,361.41
  5. Step 5: Solve for x
    x = 13,498,361.41/3,085.56
  6. Step 6: Final answer
    x = 4,374.69

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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.