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Finding the Fourth Proportional to 9,390.94, 14,090.09 and 3,551.65

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Solution

The fourth proportional to 9,390.94, 14,090.09 and 3,551.65 is: 5,328.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,390.94 : 14,090.09 = 3,551.65 : x
  2. Step 2: Convert to fraction form
    9,390.94/14,090.09 = 3,551.65/x
  3. Step 3: Cross multiply
    9,390.94x = 14,090.09 × 3,551.65
  4. Step 4: Simplify right side
    9,390.94x = 50,043,015.17
  5. Step 5: Solve for x
    x = 50,043,015.17/9,390.94
  6. Step 6: Final answer
    x = 5,328.86

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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.