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Finding the Fourth Proportional to 12,593.43, 17,378.55 and 6,928.18

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Solution

The fourth proportional to 12,593.43, 17,378.55 and 6,928.18 is: 9,560.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,593.43 : 17,378.55 = 6,928.18 : x
  2. Step 2: Convert to fraction form
    12,593.43/17,378.55 = 6,928.18/x
  3. Step 3: Cross multiply
    12,593.43x = 17,378.55 × 6,928.18
  4. Step 4: Simplify right side
    12,593.43x = 120,401,679.09
  5. Step 5: Solve for x
    x = 120,401,679.09/12,593.43
  6. Step 6: Final answer
    x = 9,560.67

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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.