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Finding the Fourth Proportional to 7,686.55, 11,529.83 and 5,934.11

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Solution

The fourth proportional to 7,686.55, 11,529.83 and 5,934.11 is: 8,901.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,686.55 : 11,529.83 = 5,934.11 : x
  2. Step 2: Convert to fraction form
    7,686.55/11,529.83 = 5,934.11/x
  3. Step 3: Cross multiply
    7,686.55x = 11,529.83 × 5,934.11
  4. Step 4: Simplify right side
    7,686.55x = 68,419,249.83
  5. Step 5: Solve for x
    x = 68,419,249.83/7,686.55
  6. Step 6: Final answer
    x = 8,901.17

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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.