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Finding the Fourth Proportional to 43,613.70, 65,420.55 and 36,701.70

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Solution

The fourth proportional to 43,613.70, 65,420.55 and 36,701.70 is: 55,052.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,613.70 : 65,420.55 = 36,701.70 : x
  2. Step 2: Convert to fraction form
    43,613.70/65,420.55 = 36,701.70/x
  3. Step 3: Cross multiply
    43,613.70x = 65,420.55 × 36,701.70
  4. Step 4: Simplify right side
    43,613.70x = 2,401,045,399.94
  5. Step 5: Solve for x
    x = 2,401,045,399.94/43,613.70
  6. Step 6: Final answer
    x = 55,052.55

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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.