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Finding the Fourth Proportional to 9,740, 13,441.20 and 5,548.34

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Solution

The fourth proportional to 9,740, 13,441.20 and 5,548.34 is: 7,656.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,740 : 13,441.20 = 5,548.34 : x
  2. Step 2: Convert to fraction form
    9,740/13,441.20 = 5,548.34/x
  3. Step 3: Cross multiply
    9,740x = 13,441.20 × 5,548.34
  4. Step 4: Simplify right side
    9,740x = 74,576,347.61
  5. Step 5: Solve for x
    x = 74,576,347.61/9,740
  6. Step 6: Final answer
    x = 7,656.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.