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Finding the Fourth Proportional to 12,232.45, 16,881.83 and 6,928.21

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Solution

The fourth proportional to 12,232.45, 16,881.83 and 6,928.21 is: 9,561.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,232.45 : 16,881.83 = 6,928.21 : x
  2. Step 2: Convert to fraction form
    12,232.45/16,881.83 = 6,928.21/x
  3. Step 3: Cross multiply
    12,232.45x = 16,881.83 × 6,928.21
  4. Step 4: Simplify right side
    12,232.45x = 116,960,863.42
  5. Step 5: Solve for x
    x = 116,960,863.42/12,232.45
  6. Step 6: Final answer
    x = 9,561.52

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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.