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Finding the Fourth Proportional to 61,380.74, 92,070.74 and 15,788.37

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Solution

The fourth proportional to 61,380.74, 92,070.74 and 15,788.37 is: 23,682.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,380.74 : 92,070.74 = 15,788.37 : x
  2. Step 2: Convert to fraction form
    61,380.74/92,070.74 = 15,788.37/x
  3. Step 3: Cross multiply
    61,380.74x = 92,070.74 × 15,788.37
  4. Step 4: Simplify right side
    61,380.74x = 1,453,647,294.03
  5. Step 5: Solve for x
    x = 1,453,647,294.03/61,380.74
  6. Step 6: Final answer
    x = 23,682.47

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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.