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Finding the Fourth Proportional to 25,668.92, 35,413.18 and 15,054.68

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Solution

The fourth proportional to 25,668.92, 35,413.18 and 15,054.68 is: 20,769.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,668.92 : 35,413.18 = 15,054.68 : x
  2. Step 2: Convert to fraction form
    25,668.92/35,413.18 = 15,054.68/x
  3. Step 3: Cross multiply
    25,668.92x = 35,413.18 × 15,054.68
  4. Step 4: Simplify right side
    25,668.92x = 533,134,092.68
  5. Step 5: Solve for x
    x = 533,134,092.68/25,668.92
  6. Step 6: Final answer
    x = 20,769.63

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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.