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Finding the Fourth Proportional to 63,700.91, 87,908.37 and 35,021.78

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Solution

The fourth proportional to 63,700.91, 87,908.37 and 35,021.78 is: 48,330.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,700.91 : 87,908.37 = 35,021.78 : x
  2. Step 2: Convert to fraction form
    63,700.91/87,908.37 = 35,021.78/x
  3. Step 3: Cross multiply
    63,700.91x = 87,908.37 × 35,021.78
  4. Step 4: Simplify right side
    63,700.91x = 3,078,707,154.76
  5. Step 5: Solve for x
    x = 3,078,707,154.76/63,700.91
  6. Step 6: Final answer
    x = 48,330.67

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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.