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Finding the Fourth Proportional to 7,250.91, 10,880.47 and 3,090.48

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Solution

The fourth proportional to 7,250.91, 10,880.47 and 3,090.48 is: 4,637.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,250.91 : 10,880.47 = 3,090.48 : x
  2. Step 2: Convert to fraction form
    7,250.91/10,880.47 = 3,090.48/x
  3. Step 3: Cross multiply
    7,250.91x = 10,880.47 × 3,090.48
  4. Step 4: Simplify right side
    7,250.91x = 33,625,874.93
  5. Step 5: Solve for x
    x = 33,625,874.93/7,250.91
  6. Step 6: Final answer
    x = 4,637.47

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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.