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Finding the Fourth Proportional to 29,541.20, 44,311.80 and 13,989.20

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Solution

The fourth proportional to 29,541.20, 44,311.80 and 13,989.20 is: 20,983.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,541.20 : 44,311.80 = 13,989.20 : x
  2. Step 2: Convert to fraction form
    29,541.20/44,311.80 = 13,989.20/x
  3. Step 3: Cross multiply
    29,541.20x = 44,311.80 × 13,989.20
  4. Step 4: Simplify right side
    29,541.20x = 619,886,632.56
  5. Step 5: Solve for x
    x = 619,886,632.56/29,541.20
  6. Step 6: Final answer
    x = 20,983.80

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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.