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Finding the Fourth Proportional to 7,201.49, 9,936.99 and 4,176.48

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Solution

The fourth proportional to 7,201.49, 9,936.99 and 4,176.48 is: 5,762.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,201.49 : 9,936.99 = 4,176.48 : x
  2. Step 2: Convert to fraction form
    7,201.49/9,936.99 = 4,176.48/x
  3. Step 3: Cross multiply
    7,201.49x = 9,936.99 × 4,176.48
  4. Step 4: Simplify right side
    7,201.49x = 41,501,609.93
  5. Step 5: Solve for x
    x = 41,501,609.93/7,201.49
  6. Step 6: Final answer
    x = 5,762.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.