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Finding the Fourth Proportional to 17,212.79, 25,818.65 and 4,900.79

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Solution

The fourth proportional to 17,212.79, 25,818.65 and 4,900.79 is: 7,351.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,212.79 : 25,818.65 = 4,900.79 : x
  2. Step 2: Convert to fraction form
    17,212.79/25,818.65 = 4,900.79/x
  3. Step 3: Cross multiply
    17,212.79x = 25,818.65 × 4,900.79
  4. Step 4: Simplify right side
    17,212.79x = 126,531,757.23
  5. Step 5: Solve for x
    x = 126,531,757.23/17,212.79
  6. Step 6: Final answer
    x = 7,351.03

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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.