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Finding the Fourth Proportional to 7,099.08, 9,795.78 and 3,955.08

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Solution

The fourth proportional to 7,099.08, 9,795.78 and 3,955.08 is: 5,457.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,099.08 : 9,795.78 = 3,955.08 : x
  2. Step 2: Convert to fraction form
    7,099.08/9,795.78 = 3,955.08/x
  3. Step 3: Cross multiply
    7,099.08x = 9,795.78 × 3,955.08
  4. Step 4: Simplify right side
    7,099.08x = 38,743,093.56
  5. Step 5: Solve for x
    x = 38,743,093.56/7,099.08
  6. Step 6: Final answer
    x = 5,457.48

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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.