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Finding the Fourth Proportional to 36,424.68, 54,619.74 and 18,876.84

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Solution

The fourth proportional to 36,424.68, 54,619.74 and 18,876.84 is: 28,306.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,424.68 : 54,619.74 = 18,876.84 : x
  2. Step 2: Convert to fraction form
    36,424.68/54,619.74 = 18,876.84/x
  3. Step 3: Cross multiply
    36,424.68x = 54,619.74 × 18,876.84
  4. Step 4: Simplify right side
    36,424.68x = 1,031,048,092.82
  5. Step 5: Solve for x
    x = 1,031,048,092.82/36,424.68
  6. Step 6: Final answer
    x = 28,306.30

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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.