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Finding the Fourth Proportional to 11,556.75, 15,948.32 and 7,367.43

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Solution

The fourth proportional to 11,556.75, 15,948.32 and 7,367.43 is: 10,167.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,556.75 : 15,948.32 = 7,367.43 : x
  2. Step 2: Convert to fraction form
    11,556.75/15,948.32 = 7,367.43/x
  3. Step 3: Cross multiply
    11,556.75x = 15,948.32 × 7,367.43
  4. Step 4: Simplify right side
    11,556.75x = 117,498,094.38
  5. Step 5: Solve for x
    x = 117,498,094.38/11,556.75
  6. Step 6: Final answer
    x = 10,167.05

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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.