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Finding the Fourth Proportional to 7,207.86, 9,935.48 and 5,313.37

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Solution

The fourth proportional to 7,207.86, 9,935.48 and 5,313.37 is: 7,324.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.86 : 9,935.48 = 5,313.37 : x
  2. Step 2: Convert to fraction form
    7,207.86/9,935.48 = 5,313.37/x
  3. Step 3: Cross multiply
    7,207.86x = 9,935.48 × 5,313.37
  4. Step 4: Simplify right side
    7,207.86x = 52,790,854.80
  5. Step 5: Solve for x
    x = 52,790,854.80/7,207.86
  6. Step 6: Final answer
    x = 7,324.07

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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.