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Finding the Fourth Proportional to 26,954.40, 40,431.64 and 9,424.20

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Solution

The fourth proportional to 26,954.40, 40,431.64 and 9,424.20 is: 14,136.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,954.40 : 40,431.64 = 9,424.20 : x
  2. Step 2: Convert to fraction form
    26,954.40/40,431.64 = 9,424.20/x
  3. Step 3: Cross multiply
    26,954.40x = 40,431.64 × 9,424.20
  4. Step 4: Simplify right side
    26,954.40x = 381,035,861.69
  5. Step 5: Solve for x
    x = 381,035,861.69/26,954.40
  6. Step 6: Final answer
    x = 14,136.31

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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.