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Finding the Fourth Proportional to 11,256.90, 16,885.11 and 3,048.90

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Solution

The fourth proportional to 11,256.90, 16,885.11 and 3,048.90 is: 4,573.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,256.90 : 16,885.11 = 3,048.90 : x
  2. Step 2: Convert to fraction form
    11,256.90/16,885.11 = 3,048.90/x
  3. Step 3: Cross multiply
    11,256.90x = 16,885.11 × 3,048.90
  4. Step 4: Simplify right side
    11,256.90x = 51,481,011.88
  5. Step 5: Solve for x
    x = 51,481,011.88/11,256.90
  6. Step 6: Final answer
    x = 4,573.28

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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.