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Finding the Fourth Proportional to 7,313.71, 10,092.87 and 3,956.49

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Solution

The fourth proportional to 7,313.71, 10,092.87 and 3,956.49 is: 5,459.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,313.71 : 10,092.87 = 3,956.49 : x
  2. Step 2: Convert to fraction form
    7,313.71/10,092.87 = 3,956.49/x
  3. Step 3: Cross multiply
    7,313.71x = 10,092.87 × 3,956.49
  4. Step 4: Simplify right side
    7,313.71x = 39,932,339.23
  5. Step 5: Solve for x
    x = 39,932,339.23/7,313.71
  6. Step 6: Final answer
    x = 5,459.93

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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.