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Finding the Fourth Proportional to 4,494.95, 6,739.51 and 2,154.90

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Solution

The fourth proportional to 4,494.95, 6,739.51 and 2,154.90 is: 3,230.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,494.95 : 6,739.51 = 2,154.90 : x
  2. Step 2: Convert to fraction form
    4,494.95/6,739.51 = 2,154.90/x
  3. Step 3: Cross multiply
    4,494.95x = 6,739.51 × 2,154.90
  4. Step 4: Simplify right side
    4,494.95x = 14,522,959.32
  5. Step 5: Solve for x
    x = 14,522,959.32/4,494.95
  6. Step 6: Final answer
    x = 3,230.95

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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.