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Finding the Fourth Proportional to 61,977.87, 85,529.97 and 33,683.52

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Solution

The fourth proportional to 61,977.87, 85,529.97 and 33,683.52 is: 46,483.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,977.87 : 85,529.97 = 33,683.52 : x
  2. Step 2: Convert to fraction form
    61,977.87/85,529.97 = 33,683.52/x
  3. Step 3: Cross multiply
    61,977.87x = 85,529.97 × 33,683.52
  4. Step 4: Simplify right side
    61,977.87x = 2,880,950,455.09
  5. Step 5: Solve for x
    x = 2,880,950,455.09/61,977.87
  6. Step 6: Final answer
    x = 46,483.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.