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Finding the Fourth Proportional to 6,699.42, 9,245.76 and 3,716.19

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Solution

The fourth proportional to 6,699.42, 9,245.76 and 3,716.19 is: 5,128.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,699.42 : 9,245.76 = 3,716.19 : x
  2. Step 2: Convert to fraction form
    6,699.42/9,245.76 = 3,716.19/x
  3. Step 3: Cross multiply
    6,699.42x = 9,245.76 × 3,716.19
  4. Step 4: Simplify right side
    6,699.42x = 34,359,000.85
  5. Step 5: Solve for x
    x = 34,359,000.85/6,699.42
  6. Step 6: Final answer
    x = 5,128.65

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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.