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Finding the Fourth Proportional to 11,852.45, 17,783.45 and 5,274.12

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Solution

The fourth proportional to 11,852.45, 17,783.45 and 5,274.12 is: 7,913.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,852.45 : 17,783.45 = 5,274.12 : x
  2. Step 2: Convert to fraction form
    11,852.45/17,783.45 = 5,274.12/x
  3. Step 3: Cross multiply
    11,852.45x = 17,783.45 × 5,274.12
  4. Step 4: Simplify right side
    11,852.45x = 93,792,022.94
  5. Step 5: Solve for x
    x = 93,792,022.94/11,852.45
  6. Step 6: Final answer
    x = 7,913.31

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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.