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Finding the Fourth Proportional to 18,794.08, 28,188.88 and 4,944.16

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Solution

The fourth proportional to 18,794.08, 28,188.88 and 4,944.16 is: 7,415.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794.08 : 28,188.88 = 4,944.16 : x
  2. Step 2: Convert to fraction form
    18,794.08/28,188.88 = 4,944.16/x
  3. Step 3: Cross multiply
    18,794.08x = 28,188.88 × 4,944.16
  4. Step 4: Simplify right side
    18,794.08x = 139,370,332.94
  5. Step 5: Solve for x
    x = 139,370,332.94/18,794.08
  6. Step 6: Final answer
    x = 7,415.65

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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.