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Finding the Fourth Proportional to 7,935.77, 10,946.94 and 7,372.62

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Solution

The fourth proportional to 7,935.77, 10,946.94 and 7,372.62 is: 10,170.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.77 : 10,946.94 = 7,372.62 : x
  2. Step 2: Convert to fraction form
    7,935.77/10,946.94 = 7,372.62/x
  3. Step 3: Cross multiply
    7,935.77x = 10,946.94 × 7,372.62
  4. Step 4: Simplify right side
    7,935.77x = 80,707,628.78
  5. Step 5: Solve for x
    x = 80,707,628.78/7,935.77
  6. Step 6: Final answer
    x = 10,170.11

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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.