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Finding the Fourth Proportional to 61,659.46, 92,491.79 and 19,538.62

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Solution

The fourth proportional to 61,659.46, 92,491.79 and 19,538.62 is: 29,308.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,659.46 : 92,491.79 = 19,538.62 : x
  2. Step 2: Convert to fraction form
    61,659.46/92,491.79 = 19,538.62/x
  3. Step 3: Cross multiply
    61,659.46x = 92,491.79 × 19,538.62
  4. Step 4: Simplify right side
    61,659.46x = 1,807,161,718.91
  5. Step 5: Solve for x
    x = 1,807,161,718.91/61,659.46
  6. Step 6: Final answer
    x = 29,308.75

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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.