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Finding the Fourth Proportional to 7,937.81, 10,953.74 and 4,400.75

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Solution

The fourth proportional to 7,937.81, 10,953.74 and 4,400.75 is: 6,072.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.81 : 10,953.74 = 4,400.75 : x
  2. Step 2: Convert to fraction form
    7,937.81/10,953.74 = 4,400.75/x
  3. Step 3: Cross multiply
    7,937.81x = 10,953.74 × 4,400.75
  4. Step 4: Simplify right side
    7,937.81x = 48,204,627.54
  5. Step 5: Solve for x
    x = 48,204,627.54/7,937.81
  6. Step 6: Final answer
    x = 6,072.78

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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.