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Finding the Fourth Proportional to 25,413.34, 35,103.84 and 19,517.84

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Solution

The fourth proportional to 25,413.34, 35,103.84 and 19,517.84 is: 26,960.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,413.34 : 35,103.84 = 19,517.84 : x
  2. Step 2: Convert to fraction form
    25,413.34/35,103.84 = 19,517.84/x
  3. Step 3: Cross multiply
    25,413.34x = 35,103.84 × 19,517.84
  4. Step 4: Simplify right side
    25,413.34x = 685,151,132.51
  5. Step 5: Solve for x
    x = 685,151,132.51/25,413.34
  6. Step 6: Final answer
    x = 26,960.29

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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.