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Finding the Fourth Proportional to 61,707.88, 85,157.28 and 33,413.57

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Solution

The fourth proportional to 61,707.88, 85,157.28 and 33,413.57 is: 46,110.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,707.88 : 85,157.28 = 33,413.57 : x
  2. Step 2: Convert to fraction form
    61,707.88/85,157.28 = 33,413.57/x
  3. Step 3: Cross multiply
    61,707.88x = 85,157.28 × 33,413.57
  4. Step 4: Simplify right side
    61,707.88x = 2,845,408,310.50
  5. Step 5: Solve for x
    x = 2,845,408,310.50/61,707.88
  6. Step 6: Final answer
    x = 46,110.94

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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.