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Finding the Fourth Proportional to 11,775.54, 17,661.69 and 6,847.50

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Solution

The fourth proportional to 11,775.54, 17,661.69 and 6,847.50 is: 10,270.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,775.54 : 17,661.69 = 6,847.50 : x
  2. Step 2: Convert to fraction form
    11,775.54/17,661.69 = 6,847.50/x
  3. Step 3: Cross multiply
    11,775.54x = 17,661.69 × 6,847.50
  4. Step 4: Simplify right side
    11,775.54x = 120,938,422.28
  5. Step 5: Solve for x
    x = 120,938,422.28/11,775.54
  6. Step 6: Final answer
    x = 10,270.31

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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.