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Finding the Fourth Proportional to 11,769.84, 17,654.77 and 8,275.48

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Solution

The fourth proportional to 11,769.84, 17,654.77 and 8,275.48 is: 12,413.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,769.84 : 17,654.77 = 8,275.48 : x
  2. Step 2: Convert to fraction form
    11,769.84/17,654.77 = 8,275.48/x
  3. Step 3: Cross multiply
    11,769.84x = 17,654.77 × 8,275.48
  4. Step 4: Simplify right side
    11,769.84x = 146,101,607.77
  5. Step 5: Solve for x
    x = 146,101,607.77/11,769.84
  6. Step 6: Final answer
    x = 12,413.22

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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.