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Finding the Fourth Proportional to 36,769.40, 55,176.90 and 19,251.80

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Solution

The fourth proportional to 36,769.40, 55,176.90 and 19,251.80 is: 28,889.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,769.40 : 55,176.90 = 19,251.80 : x
  2. Step 2: Convert to fraction form
    36,769.40/55,176.90 = 19,251.80/x
  3. Step 3: Cross multiply
    36,769.40x = 55,176.90 × 19,251.80
  4. Step 4: Simplify right side
    36,769.40x = 1,062,254,643.42
  5. Step 5: Solve for x
    x = 1,062,254,643.42/36,769.40
  6. Step 6: Final answer
    x = 28,889.64

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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.