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Finding the Fourth Proportional to 7,091.25, 10,632.87 and 2,926.63

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Solution

The fourth proportional to 7,091.25, 10,632.87 and 2,926.63 is: 4,388.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.25 : 10,632.87 = 2,926.63 : x
  2. Step 2: Convert to fraction form
    7,091.25/10,632.87 = 2,926.63/x
  3. Step 3: Cross multiply
    7,091.25x = 10,632.87 × 2,926.63
  4. Step 4: Simplify right side
    7,091.25x = 31,118,489.62
  5. Step 5: Solve for x
    x = 31,118,489.62/7,091.25
  6. Step 6: Final answer
    x = 4,388.30

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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.