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Finding the Fourth Proportional to 11,592.51, 15,991.74 and 7,336.38

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Solution

The fourth proportional to 11,592.51, 15,991.74 and 7,336.38 is: 10,120.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,592.51 : 15,991.74 = 7,336.38 : x
  2. Step 2: Convert to fraction form
    11,592.51/15,991.74 = 7,336.38/x
  3. Step 3: Cross multiply
    11,592.51x = 15,991.74 × 7,336.38
  4. Step 4: Simplify right side
    11,592.51x = 117,321,481.50
  5. Step 5: Solve for x
    x = 117,321,481.50/11,592.51
  6. Step 6: Final answer
    x = 10,120.46

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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.