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Finding the Fourth Proportional to 9,168.52, 12,649.66 and 5,390.48

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Solution

The fourth proportional to 9,168.52, 12,649.66 and 5,390.48 is: 7,437.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,168.52 : 12,649.66 = 5,390.48 : x
  2. Step 2: Convert to fraction form
    9,168.52/12,649.66 = 5,390.48/x
  3. Step 3: Cross multiply
    9,168.52x = 12,649.66 × 5,390.48
  4. Step 4: Simplify right side
    9,168.52x = 68,187,739.24
  5. Step 5: Solve for x
    x = 68,187,739.24/9,168.52
  6. Step 6: Final answer
    x = 7,437.16

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