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Finding the Fourth Proportional to 52,676.42, 79,008.54 and 13,230.53

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Solution

The fourth proportional to 52,676.42, 79,008.54 and 13,230.53 is: 19,844.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,676.42 : 79,008.54 = 13,230.53 : x
  2. Step 2: Convert to fraction form
    52,676.42/79,008.54 = 13,230.53/x
  3. Step 3: Cross multiply
    52,676.42x = 79,008.54 × 13,230.53
  4. Step 4: Simplify right side
    52,676.42x = 1,045,324,463.68
  5. Step 5: Solve for x
    x = 1,045,324,463.68/52,676.42
  6. Step 6: Final answer
    x = 19,844.26

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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.