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Finding the Fourth Proportional to 18,796.08, 28,191.92 and 4,946.16

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Solution

The fourth proportional to 18,796.08, 28,191.92 and 4,946.16 is: 7,418.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,796.08 : 28,191.92 = 4,946.16 : x
  2. Step 2: Convert to fraction form
    18,796.08/28,191.92 = 4,946.16/x
  3. Step 3: Cross multiply
    18,796.08x = 28,191.92 × 4,946.16
  4. Step 4: Simplify right side
    18,796.08x = 139,441,747.03
  5. Step 5: Solve for x
    x = 139,441,747.03/18,796.08
  6. Step 6: Final answer
    x = 7,418.66

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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.