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Finding the Fourth Proportional to 34,650.56, 47,818.56 and 20,505.92

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Solution

The fourth proportional to 34,650.56, 47,818.56 and 20,505.92 is: 28,298.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,650.56 : 47,818.56 = 20,505.92 : x
  2. Step 2: Convert to fraction form
    34,650.56/47,818.56 = 20,505.92/x
  3. Step 3: Cross multiply
    34,650.56x = 47,818.56 × 20,505.92
  4. Step 4: Simplify right side
    34,650.56x = 980,563,565.88
  5. Step 5: Solve for x
    x = 980,563,565.88/34,650.56
  6. Step 6: Final answer
    x = 28,298.64

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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.