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Finding the Fourth Proportional to 43,652.13, 65,423.41 and 18,662.80

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Solution

The fourth proportional to 43,652.13, 65,423.41 and 18,662.80 is: 27,970.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,652.13 : 65,423.41 = 18,662.80 : x
  2. Step 2: Convert to fraction form
    43,652.13/65,423.41 = 18,662.80/x
  3. Step 3: Cross multiply
    43,652.13x = 65,423.41 × 18,662.80
  4. Step 4: Simplify right side
    43,652.13x = 1,220,983,922.83
  5. Step 5: Solve for x
    x = 1,220,983,922.83/43,652.13
  6. Step 6: Final answer
    x = 27,970.78

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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.