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Finding the Fourth Proportional to 43,589.70, 65,384.55 and 41,402.70

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Solution

The fourth proportional to 43,589.70, 65,384.55 and 41,402.70 is: 62,104.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,589.70 : 65,384.55 = 41,402.70 : x
  2. Step 2: Convert to fraction form
    43,589.70/65,384.55 = 41,402.70/x
  3. Step 3: Cross multiply
    43,589.70x = 65,384.55 × 41,402.70
  4. Step 4: Simplify right side
    43,589.70x = 2,707,096,908.29
  5. Step 5: Solve for x
    x = 2,707,096,908.29/43,589.70
  6. Step 6: Final answer
    x = 62,104.05

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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.