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Finding the Fourth Proportional to 11,393.10, 17,090.10 and 4,376.52

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Solution

The fourth proportional to 11,393.10, 17,090.10 and 4,376.52 is: 6,564.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,393.10 : 17,090.10 = 4,376.52 : x
  2. Step 2: Convert to fraction form
    11,393.10/17,090.10 = 4,376.52/x
  3. Step 3: Cross multiply
    11,393.10x = 17,090.10 × 4,376.52
  4. Step 4: Simplify right side
    11,393.10x = 74,795,164.45
  5. Step 5: Solve for x
    x = 74,795,164.45/11,393.10
  6. Step 6: Final answer
    x = 6,564.95

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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.