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Finding the Fourth Proportional to 40,379.70, 55,723.50 and 23,612.70

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Solution

The fourth proportional to 40,379.70, 55,723.50 and 23,612.70 is: 32,585.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,379.70 : 55,723.50 = 23,612.70 : x
  2. Step 2: Convert to fraction form
    40,379.70/55,723.50 = 23,612.70/x
  3. Step 3: Cross multiply
    40,379.70x = 55,723.50 × 23,612.70
  4. Step 4: Simplify right side
    40,379.70x = 1,315,782,288.45
  5. Step 5: Solve for x
    x = 1,315,782,288.45/40,379.70
  6. Step 6: Final answer
    x = 32,585.24

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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.