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Finding the Fourth Proportional to 30,189.56, 41,659.56 and 16,760.16

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Solution

The fourth proportional to 30,189.56, 41,659.56 and 16,760.16 is: 23,127.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,189.56 : 41,659.56 = 16,760.16 : x
  2. Step 2: Convert to fraction form
    30,189.56/41,659.56 = 16,760.16/x
  3. Step 3: Cross multiply
    30,189.56x = 41,659.56 × 16,760.16
  4. Step 4: Simplify right side
    30,189.56x = 698,220,891.13
  5. Step 5: Solve for x
    x = 698,220,891.13/30,189.56
  6. Step 6: Final answer
    x = 23,127.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.