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Finding the Fourth Proportional to 36,487.74, 50,353.05 and 19,720.74

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Solution

The fourth proportional to 36,487.74, 50,353.05 and 19,720.74 is: 27,214.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,487.74 : 50,353.05 = 19,720.74 : x
  2. Step 2: Convert to fraction form
    36,487.74/50,353.05 = 19,720.74/x
  3. Step 3: Cross multiply
    36,487.74x = 50,353.05 × 19,720.74
  4. Step 4: Simplify right side
    36,487.74x = 992,999,330.68
  5. Step 5: Solve for x
    x = 992,999,330.68/36,487.74
  6. Step 6: Final answer
    x = 27,214.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.