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Finding the Fourth Proportional to 61,438.40, 92,039.40 and 37,676.58

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Solution

The fourth proportional to 61,438.40, 92,039.40 and 37,676.58 is: 56,442.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,438.40 : 92,039.40 = 37,676.58 : x
  2. Step 2: Convert to fraction form
    61,438.40/92,039.40 = 37,676.58/x
  3. Step 3: Cross multiply
    61,438.40x = 92,039.40 × 37,676.58
  4. Step 4: Simplify right side
    61,438.40x = 3,467,729,817.25
  5. Step 5: Solve for x
    x = 3,467,729,817.25/61,438.40
  6. Step 6: Final answer
    x = 56,442.39

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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.