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Finding the Fourth Proportional to 61,966.54, 92,944.11 and 20,413.54

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Solution

The fourth proportional to 61,966.54, 92,944.11 and 20,413.54 is: 30,618.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,966.54 : 92,944.11 = 20,413.54 : x
  2. Step 2: Convert to fraction form
    61,966.54/92,944.11 = 20,413.54/x
  3. Step 3: Cross multiply
    61,966.54x = 92,944.11 × 20,413.54
  4. Step 4: Simplify right side
    61,966.54x = 1,897,318,307.25
  5. Step 5: Solve for x
    x = 1,897,318,307.25/61,966.54
  6. Step 6: Final answer
    x = 30,618.43

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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.