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Finding the Fourth Proportional to 7,162.43, 9,884.00 and 3,975.54

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Solution

The fourth proportional to 7,162.43, 9,884.00 and 3,975.54 is: 5,486.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,162.43 : 9,884.00 = 3,975.54 : x
  2. Step 2: Convert to fraction form
    7,162.43/9,884.00 = 3,975.54/x
  3. Step 3: Cross multiply
    7,162.43x = 9,884.00 × 3,975.54
  4. Step 4: Simplify right side
    7,162.43x = 39,294,227.42
  5. Step 5: Solve for x
    x = 39,294,227.42/7,162.43
  6. Step 6: Final answer
    x = 5,486.16

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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.