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Finding the Fourth Proportional to 36,401.96, 54,581.40 and 14,189.40

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Solution

The fourth proportional to 36,401.96, 54,581.40 and 14,189.40 is: 21,275.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,401.96 : 54,581.40 = 14,189.40 : x
  2. Step 2: Convert to fraction form
    36,401.96/54,581.40 = 14,189.40/x
  3. Step 3: Cross multiply
    36,401.96x = 54,581.40 × 14,189.40
  4. Step 4: Simplify right side
    36,401.96x = 774,477,317.16
  5. Step 5: Solve for x
    x = 774,477,317.16/36,401.96
  6. Step 6: Final answer
    x = 21,275.71

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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.