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Finding the Fourth Proportional to 11,992.55, 16,549.81 and 6,959.77

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Solution

The fourth proportional to 11,992.55, 16,549.81 and 6,959.77 is: 9,604.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,992.55 : 16,549.81 = 6,959.77 : x
  2. Step 2: Convert to fraction form
    11,992.55/16,549.81 = 6,959.77/x
  3. Step 3: Cross multiply
    11,992.55x = 16,549.81 × 6,959.77
  4. Step 4: Simplify right side
    11,992.55x = 115,182,812.37
  5. Step 5: Solve for x
    x = 115,182,812.37/11,992.55
  6. Step 6: Final answer
    x = 9,604.53

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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.