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Finding the Fourth Proportional to 4,836.72, 7,254.63 and 1,326.60

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Solution

The fourth proportional to 4,836.72, 7,254.63 and 1,326.60 is: 1,989.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,836.72 : 7,254.63 = 1,326.60 : x
  2. Step 2: Convert to fraction form
    4,836.72/7,254.63 = 1,326.60/x
  3. Step 3: Cross multiply
    4,836.72x = 7,254.63 × 1,326.60
  4. Step 4: Simplify right side
    4,836.72x = 9,623,992.16
  5. Step 5: Solve for x
    x = 9,623,992.16/4,836.72
  6. Step 6: Final answer
    x = 1,989.78

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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.