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Finding the Fourth Proportional to 50,939.55, 76,412.70 and 13,499.10

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Solution

The fourth proportional to 50,939.55, 76,412.70 and 13,499.10 is: 20,249.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,939.55 : 76,412.70 = 13,499.10 : x
  2. Step 2: Convert to fraction form
    50,939.55/76,412.70 = 13,499.10/x
  3. Step 3: Cross multiply
    50,939.55x = 76,412.70 × 13,499.10
  4. Step 4: Simplify right side
    50,939.55x = 1,031,502,678.57
  5. Step 5: Solve for x
    x = 1,031,502,678.57/50,939.55
  6. Step 6: Final answer
    x = 20,249.54

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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.