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Finding the Fourth Proportional to 36,433, 54,613.98 and 18,663.64

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Solution

The fourth proportional to 36,433, 54,613.98 and 18,663.64 is: 27,977.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,433 : 54,613.98 = 18,663.64 : x
  2. Step 2: Convert to fraction form
    36,433/54,613.98 = 18,663.64/x
  3. Step 3: Cross multiply
    36,433x = 54,613.98 × 18,663.64
  4. Step 4: Simplify right side
    36,433x = 1,019,295,661.69
  5. Step 5: Solve for x
    x = 1,019,295,661.69/36,433
  6. Step 6: Final answer
    x = 27,977.26

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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.