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Finding the Fourth Proportional to 11,133.70, 16,676.49 and 10,479.40

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Solution

The fourth proportional to 11,133.70, 16,676.49 and 10,479.40 is: 15,696.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.70 : 16,676.49 = 10,479.40 : x
  2. Step 2: Convert to fraction form
    11,133.70/16,676.49 = 10,479.40/x
  3. Step 3: Cross multiply
    11,133.70x = 16,676.49 × 10,479.40
  4. Step 4: Simplify right side
    11,133.70x = 174,759,609.31
  5. Step 5: Solve for x
    x = 174,759,609.31/11,133.70
  6. Step 6: Final answer
    x = 15,696.45

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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.