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Finding the Fourth Proportional to 12,695.46, 17,521.38 and 7,662.52

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Solution

The fourth proportional to 12,695.46, 17,521.38 and 7,662.52 is: 10,575.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,695.46 : 17,521.38 = 7,662.52 : x
  2. Step 2: Convert to fraction form
    12,695.46/17,521.38 = 7,662.52/x
  3. Step 3: Cross multiply
    12,695.46x = 17,521.38 × 7,662.52
  4. Step 4: Simplify right side
    12,695.46x = 134,257,924.68
  5. Step 5: Solve for x
    x = 134,257,924.68/12,695.46
  6. Step 6: Final answer
    x = 10,575.27

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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.