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Finding the Fourth Proportional to 34,947.19, 52,420.79 and 8,651.94

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Solution

The fourth proportional to 34,947.19, 52,420.79 and 8,651.94 is: 12,977.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,947.19 : 52,420.79 = 8,651.94 : x
  2. Step 2: Convert to fraction form
    34,947.19/52,420.79 = 8,651.94/x
  3. Step 3: Cross multiply
    34,947.19x = 52,420.79 × 8,651.94
  4. Step 4: Simplify right side
    34,947.19x = 453,541,330.55
  5. Step 5: Solve for x
    x = 453,541,330.55/34,947.19
  6. Step 6: Final answer
    x = 12,977.90

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Similar ratio
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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.