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Finding the Fourth Proportional to 11,715.98, 17,573.97 and 4,790.48

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Solution

The fourth proportional to 11,715.98, 17,573.97 and 4,790.48 is: 7,185.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,715.98 : 17,573.97 = 4,790.48 : x
  2. Step 2: Convert to fraction form
    11,715.98/17,573.97 = 4,790.48/x
  3. Step 3: Cross multiply
    11,715.98x = 17,573.97 × 4,790.48
  4. Step 4: Simplify right side
    11,715.98x = 84,187,663.94
  5. Step 5: Solve for x
    x = 84,187,663.94/11,715.98
  6. Step 6: Final answer
    x = 7,185.72

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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.