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Finding the Fourth Proportional to 8,372.34, 12,560.42 and 3,693.67

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Solution

The fourth proportional to 8,372.34, 12,560.42 and 3,693.67 is: 5,541.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372.34 : 12,560.42 = 3,693.67 : x
  2. Step 2: Convert to fraction form
    8,372.34/12,560.42 = 3,693.67/x
  3. Step 3: Cross multiply
    8,372.34x = 12,560.42 × 3,693.67
  4. Step 4: Simplify right side
    8,372.34x = 46,394,046.54
  5. Step 5: Solve for x
    x = 46,394,046.54/8,372.34
  6. Step 6: Final answer
    x = 5,541.35

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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.