Home / 7,409.52-11,105.16-3,505.84

Finding the Fourth Proportional to 7,409.52, 11,105.16 and 3,505.84

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Solution

The fourth proportional to 7,409.52, 11,105.16 and 3,505.84 is: 5,254.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,409.52 : 11,105.16 = 3,505.84 : x
  2. Step 2: Convert to fraction form
    7,409.52/11,105.16 = 3,505.84/x
  3. Step 3: Cross multiply
    7,409.52x = 11,105.16 × 3,505.84
  4. Step 4: Simplify right side
    7,409.52x = 38,932,914.13
  5. Step 5: Solve for x
    x = 38,932,914.13/7,409.52
  6. Step 6: Final answer
    x = 5,254.44

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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.