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Finding the Fourth Proportional to 26,958.70, 40,423.65 and 9,429.10

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Solution

The fourth proportional to 26,958.70, 40,423.65 and 9,429.10 is: 14,138.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,958.70 : 40,423.65 = 9,429.10 : x
  2. Step 2: Convert to fraction form
    26,958.70/40,423.65 = 9,429.10/x
  3. Step 3: Cross multiply
    26,958.70x = 40,423.65 × 9,429.10
  4. Step 4: Simplify right side
    26,958.70x = 381,158,638.22
  5. Step 5: Solve for x
    x = 381,158,638.22/26,958.70
  6. Step 6: Final answer
    x = 14,138.61

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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.