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Finding the Fourth Proportional to 4,268.55, 5,890.60 and 2,405.55

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Solution

The fourth proportional to 4,268.55, 5,890.60 and 2,405.55 is: 3,319.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,268.55 : 5,890.60 = 2,405.55 : x
  2. Step 2: Convert to fraction form
    4,268.55/5,890.60 = 2,405.55/x
  3. Step 3: Cross multiply
    4,268.55x = 5,890.60 × 2,405.55
  4. Step 4: Simplify right side
    4,268.55x = 14,170,132.83
  5. Step 5: Solve for x
    x = 14,170,132.83/4,268.55
  6. Step 6: Final answer
    x = 3,319.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.