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Finding the Fourth Proportional to 6,451.94, 8,904.12 and 3,619.64

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Solution

The fourth proportional to 6,451.94, 8,904.12 and 3,619.64 is: 4,995.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,451.94 : 8,904.12 = 3,619.64 : x
  2. Step 2: Convert to fraction form
    6,451.94/8,904.12 = 3,619.64/x
  3. Step 3: Cross multiply
    6,451.94x = 8,904.12 × 3,619.64
  4. Step 4: Simplify right side
    6,451.94x = 32,229,708.92
  5. Step 5: Solve for x
    x = 32,229,708.92/6,451.94
  6. Step 6: Final answer
    x = 4,995.35

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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.