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Finding the Fourth Proportional to 30,626.93, 45,939.49 and 8,441.64

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Solution

The fourth proportional to 30,626.93, 45,939.49 and 8,441.64 is: 12,662.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,626.93 : 45,939.49 = 8,441.64 : x
  2. Step 2: Convert to fraction form
    30,626.93/45,939.49 = 8,441.64/x
  3. Step 3: Cross multiply
    30,626.93x = 45,939.49 × 8,441.64
  4. Step 4: Simplify right side
    30,626.93x = 387,804,615.26
  5. Step 5: Solve for x
    x = 387,804,615.26/30,626.93
  6. Step 6: Final answer
    x = 12,662.21

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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.