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Finding the Fourth Proportional to 12,704.34, 17,532.62 and 7,668.48

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Solution

The fourth proportional to 12,704.34, 17,532.62 and 7,668.48 is: 10,582.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,704.34 : 17,532.62 = 7,668.48 : x
  2. Step 2: Convert to fraction form
    12,704.34/17,532.62 = 7,668.48/x
  3. Step 3: Cross multiply
    12,704.34x = 17,532.62 × 7,668.48
  4. Step 4: Simplify right side
    12,704.34x = 134,448,507.48
  5. Step 5: Solve for x
    x = 134,448,507.48/12,704.34
  6. Step 6: Final answer
    x = 10,582.88

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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.