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Finding the Fourth Proportional to 5,245.96, 7,869.66 and 1,548.46

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Solution

The fourth proportional to 5,245.96, 7,869.66 and 1,548.46 is: 2,322.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.96 : 7,869.66 = 1,548.46 : x
  2. Step 2: Convert to fraction form
    5,245.96/7,869.66 = 1,548.46/x
  3. Step 3: Cross multiply
    5,245.96x = 7,869.66 × 1,548.46
  4. Step 4: Simplify right side
    5,245.96x = 12,185,853.72
  5. Step 5: Solve for x
    x = 12,185,853.72/5,245.96
  6. Step 6: Final answer
    x = 2,322.90

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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.