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Finding the Fourth Proportional to 12,593.62, 18,890.74 and 5,572.14

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Solution

The fourth proportional to 12,593.62, 18,890.74 and 5,572.14 is: 8,358.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,593.62 : 18,890.74 = 5,572.14 : x
  2. Step 2: Convert to fraction form
    12,593.62/18,890.74 = 5,572.14/x
  3. Step 3: Cross multiply
    12,593.62x = 18,890.74 × 5,572.14
  4. Step 4: Simplify right side
    12,593.62x = 105,261,847.98
  5. Step 5: Solve for x
    x = 105,261,847.98/12,593.62
  6. Step 6: Final answer
    x = 8,358.35

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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.