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Finding the Fourth Proportional to 7,668.97, 11,517.32 and 7,051.55

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Solution

The fourth proportional to 7,668.97, 11,517.32 and 7,051.55 is: 10,590.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,668.97 : 11,517.32 = 7,051.55 : x
  2. Step 2: Convert to fraction form
    7,668.97/11,517.32 = 7,051.55/x
  3. Step 3: Cross multiply
    7,668.97x = 11,517.32 × 7,051.55
  4. Step 4: Simplify right side
    7,668.97x = 81,214,917.89
  5. Step 5: Solve for x
    x = 81,214,917.89/7,668.97
  6. Step 6: Final answer
    x = 10,590.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.