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Finding the Fourth Proportional to 26,899.34, 40,350.53 and 8,179.99

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Solution

The fourth proportional to 26,899.34, 40,350.53 and 8,179.99 is: 12,270.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,899.34 : 40,350.53 = 8,179.99 : x
  2. Step 2: Convert to fraction form
    26,899.34/40,350.53 = 8,179.99/x
  3. Step 3: Cross multiply
    26,899.34x = 40,350.53 × 8,179.99
  4. Step 4: Simplify right side
    26,899.34x = 330,066,828.46
  5. Step 5: Solve for x
    x = 330,066,828.46/26,899.34
  6. Step 6: Final answer
    x = 12,270.44

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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.