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Finding the Fourth Proportional to 61,413.96, 84,738.54 and 35,915.37

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Solution

The fourth proportional to 61,413.96, 84,738.54 and 35,915.37 is: 49,555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,413.96 : 84,738.54 = 35,915.37 : x
  2. Step 2: Convert to fraction form
    61,413.96/84,738.54 = 35,915.37/x
  3. Step 3: Cross multiply
    61,413.96x = 84,738.54 × 35,915.37
  4. Step 4: Simplify right side
    61,413.96x = 3,043,416,017.36
  5. Step 5: Solve for x
    x = 3,043,416,017.36/61,413.96
  6. Step 6: Final answer
    x = 49,555.77

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1.5x scale

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.