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Finding the Fourth Proportional to 10,955.43, 16,438.41 and 7,844.22

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Solution

The fourth proportional to 10,955.43, 16,438.41 and 7,844.22 is: 11,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,955.43 : 16,438.41 = 7,844.22 : x
  2. Step 2: Convert to fraction form
    10,955.43/16,438.41 = 7,844.22/x
  3. Step 3: Cross multiply
    10,955.43x = 16,438.41 × 7,844.22
  4. Step 4: Simplify right side
    10,955.43x = 128,946,504.49
  5. Step 5: Solve for x
    x = 128,946,504.49/10,955.43
  6. Step 6: Final answer
    x = 11,770.10

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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.