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Finding the Fourth Proportional to 40,314.51, 60,471.90 and 12,234.80

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Solution

The fourth proportional to 40,314.51, 60,471.90 and 12,234.80 is: 18,352.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,314.51 : 60,471.90 = 12,234.80 : x
  2. Step 2: Convert to fraction form
    40,314.51/60,471.90 = 12,234.80/x
  3. Step 3: Cross multiply
    40,314.51x = 60,471.90 × 12,234.80
  4. Step 4: Simplify right side
    40,314.51x = 739,861,602.12
  5. Step 5: Solve for x
    x = 739,861,602.12/40,314.51
  6. Step 6: Final answer
    x = 18,352.24

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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.