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Finding the Fourth Proportional to 12,604.14, 17,393.76 and 6,939.45

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Solution

The fourth proportional to 12,604.14, 17,393.76 and 6,939.45 is: 9,576.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,604.14 : 17,393.76 = 6,939.45 : x
  2. Step 2: Convert to fraction form
    12,604.14/17,393.76 = 6,939.45/x
  3. Step 3: Cross multiply
    12,604.14x = 17,393.76 × 6,939.45
  4. Step 4: Simplify right side
    12,604.14x = 120,703,127.83
  5. Step 5: Solve for x
    x = 120,703,127.83/12,604.14
  6. Step 6: Final answer
    x = 9,576.47

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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.