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Finding the Fourth Proportional to 18,944.94, 28,421.88 and 5,797.32

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Solution

The fourth proportional to 18,944.94, 28,421.88 and 5,797.32 is: 8,697.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,944.94 : 28,421.88 = 5,797.32 : x
  2. Step 2: Convert to fraction form
    18,944.94/28,421.88 = 5,797.32/x
  3. Step 3: Cross multiply
    18,944.94x = 28,421.88 × 5,797.32
  4. Step 4: Simplify right side
    18,944.94x = 164,770,733.36
  5. Step 5: Solve for x
    x = 164,770,733.36/18,944.94
  6. Step 6: Final answer
    x = 8,697.35

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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.