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Finding the Fourth Proportional to 15,063.93, 20,788.34 and 8,349.67

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Solution

The fourth proportional to 15,063.93, 20,788.34 and 8,349.67 is: 11,522.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,063.93 : 20,788.34 = 8,349.67 : x
  2. Step 2: Convert to fraction form
    15,063.93/20,788.34 = 8,349.67/x
  3. Step 3: Cross multiply
    15,063.93x = 20,788.34 × 8,349.67
  4. Step 4: Simplify right side
    15,063.93x = 173,575,778.85
  5. Step 5: Solve for x
    x = 173,575,778.85/15,063.93
  6. Step 6: Final answer
    x = 11,522.61

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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.