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Finding the Fourth Proportional to 35,951.40, 53,918.46 and 18,412.20

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Solution

The fourth proportional to 35,951.40, 53,918.46 and 18,412.20 is: 27,613.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,951.40 : 53,918.46 = 18,412.20 : x
  2. Step 2: Convert to fraction form
    35,951.40/53,918.46 = 18,412.20/x
  3. Step 3: Cross multiply
    35,951.40x = 53,918.46 × 18,412.20
  4. Step 4: Simplify right side
    35,951.40x = 992,757,469.21
  5. Step 5: Solve for x
    x = 992,757,469.21/35,951.40
  6. Step 6: Final answer
    x = 27,613.88

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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.