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Finding the Fourth Proportional to 11,810.75, 17,719.01 and 3,602.75

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Solution

The fourth proportional to 11,810.75, 17,719.01 and 3,602.75 is: 5,405.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,810.75 : 17,719.01 = 3,602.75 : x
  2. Step 2: Convert to fraction form
    11,810.75/17,719.01 = 3,602.75/x
  3. Step 3: Cross multiply
    11,810.75x = 17,719.01 × 3,602.75
  4. Step 4: Simplify right side
    11,810.75x = 63,837,163.28
  5. Step 5: Solve for x
    x = 63,837,163.28/11,810.75
  6. Step 6: Final answer
    x = 5,405.01

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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.