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Finding the Fourth Proportional to 61,660.63, 92,491.35 and 19,539.82

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Solution

The fourth proportional to 61,660.63, 92,491.35 and 19,539.82 is: 29,309.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,660.63 : 92,491.35 = 19,539.82 : x
  2. Step 2: Convert to fraction form
    61,660.63/92,491.35 = 19,539.82/x
  3. Step 3: Cross multiply
    61,660.63x = 92,491.35 × 19,539.82
  4. Step 4: Simplify right side
    61,660.63x = 1,807,264,330.56
  5. Step 5: Solve for x
    x = 1,807,264,330.56/61,660.63
  6. Step 6: Final answer
    x = 29,309.86

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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.