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Finding the Fourth Proportional to 11,556.75, 15,948.22 and 6,251.58

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Solution

The fourth proportional to 11,556.75, 15,948.22 and 6,251.58 is: 8,627.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,556.75 : 15,948.22 = 6,251.58 : x
  2. Step 2: Convert to fraction form
    11,556.75/15,948.22 = 6,251.58/x
  3. Step 3: Cross multiply
    11,556.75x = 15,948.22 × 6,251.58
  4. Step 4: Simplify right side
    11,556.75x = 99,701,573.19
  5. Step 5: Solve for x
    x = 99,701,573.19/11,556.75
  6. Step 6: Final answer
    x = 8,627.13

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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.