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Finding the Fourth Proportional to 36,805.70, 55,209.46 and 13,432.12

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Solution

The fourth proportional to 36,805.70, 55,209.46 and 13,432.12 is: 20,148.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,805.70 : 55,209.46 = 13,432.12 : x
  2. Step 2: Convert to fraction form
    36,805.70/55,209.46 = 13,432.12/x
  3. Step 3: Cross multiply
    36,805.70x = 55,209.46 × 13,432.12
  4. Step 4: Simplify right side
    36,805.70x = 741,580,091.86
  5. Step 5: Solve for x
    x = 741,580,091.86/36,805.70
  6. Step 6: Final answer
    x = 20,148.51

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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.