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Finding the Fourth Proportional to 6,992.39, 9,641.57 and 5,100.64

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Solution

The fourth proportional to 6,992.39, 9,641.57 and 5,100.64 is: 7,033.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,992.39 : 9,641.57 = 5,100.64 : x
  2. Step 2: Convert to fraction form
    6,992.39/9,641.57 = 5,100.64/x
  3. Step 3: Cross multiply
    6,992.39x = 9,641.57 × 5,100.64
  4. Step 4: Simplify right side
    6,992.39x = 49,178,128.00
  5. Step 5: Solve for x
    x = 49,178,128.00/6,992.39
  6. Step 6: Final answer
    x = 7,033.09

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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.