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Finding the Fourth Proportional to 8,351.97, 12,527.95 and 3,421.62

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Solution

The fourth proportional to 8,351.97, 12,527.95 and 3,421.62 is: 5,132.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,351.97 : 12,527.95 = 3,421.62 : x
  2. Step 2: Convert to fraction form
    8,351.97/12,527.95 = 3,421.62/x
  3. Step 3: Cross multiply
    8,351.97x = 12,527.95 × 3,421.62
  4. Step 4: Simplify right side
    8,351.97x = 42,865,882.14
  5. Step 5: Solve for x
    x = 42,865,882.14/8,351.97
  6. Step 6: Final answer
    x = 5,132.43

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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.