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Finding the Fourth Proportional to 11,904.17, 17,700.44 and 11,405.90

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Solution

The fourth proportional to 11,904.17, 17,700.44 and 11,405.90 is: 16,959.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,904.17 : 17,700.44 = 11,405.90 : x
  2. Step 2: Convert to fraction form
    11,904.17/17,700.44 = 11,405.90/x
  3. Step 3: Cross multiply
    11,904.17x = 17,700.44 × 11,405.90
  4. Step 4: Simplify right side
    11,904.17x = 201,889,435.82
  5. Step 5: Solve for x
    x = 201,889,435.82/11,904.17
  6. Step 6: Final answer
    x = 16,959.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.