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Finding the Fourth Proportional to 7,262.75, 10,022.92 and 4,278.71

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Solution

The fourth proportional to 7,262.75, 10,022.92 and 4,278.71 is: 5,904.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,262.75 : 10,022.92 = 4,278.71 : x
  2. Step 2: Convert to fraction form
    7,262.75/10,022.92 = 4,278.71/x
  3. Step 3: Cross multiply
    7,262.75x = 10,022.92 × 4,278.71
  4. Step 4: Simplify right side
    7,262.75x = 42,885,107.22
  5. Step 5: Solve for x
    x = 42,885,107.22/7,262.75
  6. Step 6: Final answer
    x = 5,904.81

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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.