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Finding the Fourth Proportional to 9,390.75, 14,090.99 and 4,773.75

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Solution

The fourth proportional to 9,390.75, 14,090.99 and 4,773.75 is: 7,163.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,390.75 : 14,090.99 = 4,773.75 : x
  2. Step 2: Convert to fraction form
    9,390.75/14,090.99 = 4,773.75/x
  3. Step 3: Cross multiply
    9,390.75x = 14,090.99 × 4,773.75
  4. Step 4: Simplify right side
    9,390.75x = 67,266,839.64
  5. Step 5: Solve for x
    x = 67,266,839.64/9,390.75
  6. Step 6: Final answer
    x = 7,163.10

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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.