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Finding the Fourth Proportional to 36,561.99, 54,842.99 and 13,188.42

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Solution

The fourth proportional to 36,561.99, 54,842.99 and 13,188.42 is: 19,782.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,561.99 : 54,842.99 = 13,188.42 : x
  2. Step 2: Convert to fraction form
    36,561.99/54,842.99 = 13,188.42/x
  3. Step 3: Cross multiply
    36,561.99x = 54,842.99 × 13,188.42
  4. Step 4: Simplify right side
    36,561.99x = 723,292,386.18
  5. Step 5: Solve for x
    x = 723,292,386.18/36,561.99
  6. Step 6: Final answer
    x = 19,782.63

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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.