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Finding the Fourth Proportional to 11,573.80, 17,373.66 and 7,685.80

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Solution

The fourth proportional to 11,573.80, 17,373.66 and 7,685.80 is: 11,537.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,573.80 : 17,373.66 = 7,685.80 : x
  2. Step 2: Convert to fraction form
    11,573.80/17,373.66 = 7,685.80/x
  3. Step 3: Cross multiply
    11,573.80x = 17,373.66 × 7,685.80
  4. Step 4: Simplify right side
    11,573.80x = 133,530,476.03
  5. Step 5: Solve for x
    x = 133,530,476.03/11,573.80
  6. Step 6: Final answer
    x = 11,537.31

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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.