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Finding the Fourth Proportional to 9,171.77, 13,751.26 and 4,425.05

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Solution

The fourth proportional to 9,171.77, 13,751.26 and 4,425.05 is: 6,634.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,171.77 : 13,751.26 = 4,425.05 : x
  2. Step 2: Convert to fraction form
    9,171.77/13,751.26 = 4,425.05/x
  3. Step 3: Cross multiply
    9,171.77x = 13,751.26 × 4,425.05
  4. Step 4: Simplify right side
    9,171.77x = 60,850,036.38
  5. Step 5: Solve for x
    x = 60,850,036.38/9,171.77
  6. Step 6: Final answer
    x = 6,634.50

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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.