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Finding the Fourth Proportional to 6,699.53, 9,245.32 and 3,715.81

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Solution

The fourth proportional to 6,699.53, 9,245.32 and 3,715.81 is: 5,127.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,699.53 : 9,245.32 = 3,715.81 : x
  2. Step 2: Convert to fraction form
    6,699.53/9,245.32 = 3,715.81/x
  3. Step 3: Cross multiply
    6,699.53x = 9,245.32 × 3,715.81
  4. Step 4: Simplify right side
    6,699.53x = 34,353,820.11
  5. Step 5: Solve for x
    x = 34,353,820.11/6,699.53
  6. Step 6: Final answer
    x = 5,127.79

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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.