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Finding the Fourth Proportional to 61,795.52, 92,691.96 and 19,678.51

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Solution

The fourth proportional to 61,795.52, 92,691.96 and 19,678.51 is: 29,517.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,795.52 : 92,691.96 = 19,678.51 : x
  2. Step 2: Convert to fraction form
    61,795.52/92,691.96 = 19,678.51/x
  3. Step 3: Cross multiply
    61,795.52x = 92,691.96 × 19,678.51
  4. Step 4: Simplify right side
    61,795.52x = 1,824,039,814.54
  5. Step 5: Solve for x
    x = 1,824,039,814.54/61,795.52
  6. Step 6: Final answer
    x = 29,517.35

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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.