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Finding the Fourth Proportional to 27,231.94, 40,818.87 and 15,519.94

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Solution

The fourth proportional to 27,231.94, 40,818.87 and 15,519.94 is: 23,263.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,231.94 : 40,818.87 = 15,519.94 : x
  2. Step 2: Convert to fraction form
    27,231.94/40,818.87 = 15,519.94/x
  3. Step 3: Cross multiply
    27,231.94x = 40,818.87 × 15,519.94
  4. Step 4: Simplify right side
    27,231.94x = 633,506,413.27
  5. Step 5: Solve for x
    x = 633,506,413.27/27,231.94
  6. Step 6: Final answer
    x = 23,263.36

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1.5x scale

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.