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Finding the Fourth Proportional to 6,349.80, 8,763.65 and 3,698.67

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Solution

The fourth proportional to 6,349.80, 8,763.65 and 3,698.67 is: 5,104.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,349.80 : 8,763.65 = 3,698.67 : x
  2. Step 2: Convert to fraction form
    6,349.80/8,763.65 = 3,698.67/x
  3. Step 3: Cross multiply
    6,349.80x = 8,763.65 × 3,698.67
  4. Step 4: Simplify right side
    6,349.80x = 32,413,830.85
  5. Step 5: Solve for x
    x = 32,413,830.85/6,349.80
  6. Step 6: Final answer
    x = 5,104.70

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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.