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Finding the Fourth Proportional to 11,775.63, 17,586.80 and 10,550.91

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Solution

The fourth proportional to 11,775.63, 17,586.80 and 10,550.91 is: 15,757.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,775.63 : 17,586.80 = 10,550.91 : x
  2. Step 2: Convert to fraction form
    11,775.63/17,586.80 = 10,550.91/x
  3. Step 3: Cross multiply
    11,775.63x = 17,586.80 × 10,550.91
  4. Step 4: Simplify right side
    11,775.63x = 185,556,770.37
  5. Step 5: Solve for x
    x = 185,556,770.37/11,775.63
  6. Step 6: Final answer
    x = 15,757.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.