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Finding the Fourth Proportional to 11,907.92, 17,860.61 and 4,888.67

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Solution

The fourth proportional to 11,907.92, 17,860.61 and 4,888.67 is: 7,332.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,907.92 : 17,860.61 = 4,888.67 : x
  2. Step 2: Convert to fraction form
    11,907.92/17,860.61 = 4,888.67/x
  3. Step 3: Cross multiply
    11,907.92x = 17,860.61 × 4,888.67
  4. Step 4: Simplify right side
    11,907.92x = 87,314,514.54
  5. Step 5: Solve for x
    x = 87,314,514.54/11,907.92
  6. Step 6: Final answer
    x = 7,332.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.