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Finding the Fourth Proportional to 9,393.06, 12,962.43 and 5,201.31

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Solution

The fourth proportional to 9,393.06, 12,962.43 and 5,201.31 is: 7,177.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,393.06 : 12,962.43 = 5,201.31 : x
  2. Step 2: Convert to fraction form
    9,393.06/12,962.43 = 5,201.31/x
  3. Step 3: Cross multiply
    9,393.06x = 12,962.43 × 5,201.31
  4. Step 4: Simplify right side
    9,393.06x = 67,421,649.19
  5. Step 5: Solve for x
    x = 67,421,649.19/9,393.06
  6. Step 6: Final answer
    x = 7,177.81

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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.