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Finding the Fourth Proportional to 11,851.64, 17,747.72 and 10,728.24

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Solution

The fourth proportional to 11,851.64, 17,747.72 and 10,728.24 is: 16,065.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,851.64 : 17,747.72 = 10,728.24 : x
  2. Step 2: Convert to fraction form
    11,851.64/17,747.72 = 10,728.24/x
  3. Step 3: Cross multiply
    11,851.64x = 17,747.72 × 10,728.24
  4. Step 4: Simplify right side
    11,851.64x = 190,401,710.87
  5. Step 5: Solve for x
    x = 190,401,710.87/11,851.64
  6. Step 6: Final answer
    x = 16,065.44

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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.