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Finding the Fourth Proportional to 7,859.90, 11,795.93 and 5,394.67

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Solution

The fourth proportional to 7,859.90, 11,795.93 and 5,394.67 is: 8,096.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,859.90 : 11,795.93 = 5,394.67 : x
  2. Step 2: Convert to fraction form
    7,859.90/11,795.93 = 5,394.67/x
  3. Step 3: Cross multiply
    7,859.90x = 11,795.93 × 5,394.67
  4. Step 4: Simplify right side
    7,859.90x = 63,635,149.69
  5. Step 5: Solve for x
    x = 63,635,149.69/7,859.90
  6. Step 6: Final answer
    x = 8,096.18

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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.