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Finding the Fourth Proportional to 37,229.40, 55,827.90 and 12,259.80

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Solution

The fourth proportional to 37,229.40, 55,827.90 and 12,259.80 is: 18,384.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,229.40 : 55,827.90 = 12,259.80 : x
  2. Step 2: Convert to fraction form
    37,229.40/55,827.90 = 12,259.80/x
  3. Step 3: Cross multiply
    37,229.40x = 55,827.90 × 12,259.80
  4. Step 4: Simplify right side
    37,229.40x = 684,438,888.42
  5. Step 5: Solve for x
    x = 684,438,888.42/37,229.40
  6. Step 6: Final answer
    x = 18,384.37

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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.