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Finding the Fourth Proportional to 63,189.74, 87,213.03 and 36,330.14

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Solution

The fourth proportional to 63,189.74, 87,213.03 and 36,330.14 is: 50,142.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,189.74 : 87,213.03 = 36,330.14 : x
  2. Step 2: Convert to fraction form
    63,189.74/87,213.03 = 36,330.14/x
  3. Step 3: Cross multiply
    63,189.74x = 87,213.03 × 36,330.14
  4. Step 4: Simplify right side
    63,189.74x = 3,168,461,589.72
  5. Step 5: Solve for x
    x = 3,168,461,589.72/63,189.74
  6. Step 6: Final answer
    x = 50,142.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.