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Finding the Fourth Proportional to 11,556.51, 15,947.97 and 6,251.31

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Solution

The fourth proportional to 11,556.51, 15,947.97 and 6,251.31 is: 8,626.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,556.51 : 15,947.97 = 6,251.31 : x
  2. Step 2: Convert to fraction form
    11,556.51/15,947.97 = 6,251.31/x
  3. Step 3: Cross multiply
    11,556.51x = 15,947.97 × 6,251.31
  4. Step 4: Simplify right side
    11,556.51x = 99,695,704.34
  5. Step 5: Solve for x
    x = 99,695,704.34/11,556.51
  6. Step 6: Final answer
    x = 8,626.80

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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.