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Finding the Fourth Proportional to 7,937.11, 11,847.71 and 7,358.94

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Solution

The fourth proportional to 7,937.11, 11,847.71 and 7,358.94 is: 10,984.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.11 : 11,847.71 = 7,358.94 : x
  2. Step 2: Convert to fraction form
    7,937.11/11,847.71 = 7,358.94/x
  3. Step 3: Cross multiply
    7,937.11x = 11,847.71 × 7,358.94
  4. Step 4: Simplify right side
    7,937.11x = 87,186,587.03
  5. Step 5: Solve for x
    x = 87,186,587.03/7,937.11
  6. Step 6: Final answer
    x = 10,984.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.