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Finding the Fourth Proportional to 43,333.64, 65,000.16 and 12,168.92

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Solution

The fourth proportional to 43,333.64, 65,000.16 and 12,168.92 is: 18,253.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,333.64 : 65,000.16 = 12,168.92 : x
  2. Step 2: Convert to fraction form
    43,333.64/65,000.16 = 12,168.92/x
  3. Step 3: Cross multiply
    43,333.64x = 65,000.16 × 12,168.92
  4. Step 4: Simplify right side
    43,333.64x = 790,981,747.03
  5. Step 5: Solve for x
    x = 790,981,747.03/43,333.64
  6. Step 6: Final answer
    x = 18,253.30

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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.