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Finding the Fourth Proportional to 62,676.53, 94,015.12 and 21,123.89

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Solution

The fourth proportional to 62,676.53, 94,015.12 and 21,123.89 is: 31,685.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,676.53 : 94,015.12 = 21,123.89 : x
  2. Step 2: Convert to fraction form
    62,676.53/94,015.12 = 21,123.89/x
  3. Step 3: Cross multiply
    62,676.53x = 94,015.12 × 21,123.89
  4. Step 4: Simplify right side
    62,676.53x = 1,985,965,053.22
  5. Step 5: Solve for x
    x = 1,985,965,053.22/62,676.53
  6. Step 6: Final answer
    x = 31,685.94

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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.