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Finding the Fourth Proportional to 36,860.81, 55,291.22 and 9,158.81

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Solution

The fourth proportional to 36,860.81, 55,291.22 and 9,158.81 is: 13,738.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,860.81 : 55,291.22 = 9,158.81 : x
  2. Step 2: Convert to fraction form
    36,860.81/55,291.22 = 9,158.81/x
  3. Step 3: Cross multiply
    36,860.81x = 55,291.22 × 9,158.81
  4. Step 4: Simplify right side
    36,860.81x = 506,401,939.77
  5. Step 5: Solve for x
    x = 506,401,939.77/36,860.81
  6. Step 6: Final answer
    x = 13,738.22

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Similar ratio
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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.