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Finding the Fourth Proportional to 26,598.30, 39,895.20 and 8,130.30

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Solution

The fourth proportional to 26,598.30, 39,895.20 and 8,130.30 is: 12,194.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,598.30 : 39,895.20 = 8,130.30 : x
  2. Step 2: Convert to fraction form
    26,598.30/39,895.20 = 8,130.30/x
  3. Step 3: Cross multiply
    26,598.30x = 39,895.20 × 8,130.30
  4. Step 4: Simplify right side
    26,598.30x = 324,359,944.56
  5. Step 5: Solve for x
    x = 324,359,944.56/26,598.30
  6. Step 6: Final answer
    x = 12,194.76

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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.