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Finding the Fourth Proportional to 11,670.56, 17,505.24 and 2,905.56

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Solution

The fourth proportional to 11,670.56, 17,505.24 and 2,905.56 is: 4,358.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,670.56 : 17,505.24 = 2,905.56 : x
  2. Step 2: Convert to fraction form
    11,670.56/17,505.24 = 2,905.56/x
  3. Step 3: Cross multiply
    11,670.56x = 17,505.24 × 2,905.56
  4. Step 4: Simplify right side
    11,670.56x = 50,862,525.13
  5. Step 5: Solve for x
    x = 50,862,525.13/11,670.56
  6. Step 6: Final answer
    x = 4,358.19

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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.