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Finding the Fourth Proportional to 34,330.40, 51,524.40 and 16,815.20

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Solution

The fourth proportional to 34,330.40, 51,524.40 and 16,815.20 is: 25,236.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,330.40 : 51,524.40 = 16,815.20 : x
  2. Step 2: Convert to fraction form
    34,330.40/51,524.40 = 16,815.20/x
  3. Step 3: Cross multiply
    34,330.40x = 51,524.40 × 16,815.20
  4. Step 4: Simplify right side
    34,330.40x = 866,393,090.88
  5. Step 5: Solve for x
    x = 866,393,090.88/34,330.40
  6. Step 6: Final answer
    x = 25,236.91

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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.