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Finding the Fourth Proportional to 43,359.98, 65,039.98 and 12,195.22

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Solution

The fourth proportional to 43,359.98, 65,039.98 and 12,195.22 is: 18,292.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,359.98 : 65,039.98 = 12,195.22 : x
  2. Step 2: Convert to fraction form
    43,359.98/65,039.98 = 12,195.22/x
  3. Step 3: Cross multiply
    43,359.98x = 65,039.98 × 12,195.22
  4. Step 4: Simplify right side
    43,359.98x = 793,176,864.90
  5. Step 5: Solve for x
    x = 793,176,864.90/43,359.98
  6. Step 6: Final answer
    x = 18,292.83

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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.