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Finding the Fourth Proportional to 61,937.60, 92,949.60 and 39,804.80

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Solution

The fourth proportional to 61,937.60, 92,949.60 and 39,804.80 is: 59,734.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,937.60 : 92,949.60 = 39,804.80 : x
  2. Step 2: Convert to fraction form
    61,937.60/92,949.60 = 39,804.80/x
  3. Step 3: Cross multiply
    61,937.60x = 92,949.60 × 39,804.80
  4. Step 4: Simplify right side
    61,937.60x = 3,699,840,238.08
  5. Step 5: Solve for x
    x = 3,699,840,238.08/61,937.60
  6. Step 6: Final answer
    x = 59,734.96

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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.