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Finding the Fourth Proportional to 9,419.58, 13,001.22 and 5,644.98

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Solution

The fourth proportional to 9,419.58, 13,001.22 and 5,644.98 is: 7,791.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,419.58 : 13,001.22 = 5,644.98 : x
  2. Step 2: Convert to fraction form
    9,419.58/13,001.22 = 5,644.98/x
  3. Step 3: Cross multiply
    9,419.58x = 13,001.22 × 5,644.98
  4. Step 4: Simplify right side
    9,419.58x = 73,391,626.88
  5. Step 5: Solve for x
    x = 73,391,626.88/9,419.58
  6. Step 6: Final answer
    x = 7,791.39

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1.5x scale

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.