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Finding the Fourth Proportional to 14,471.80, 21,702.30 and 5,704.90

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Solution

The fourth proportional to 14,471.80, 21,702.30 and 5,704.90 is: 8,555.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,471.80 : 21,702.30 = 5,704.90 : x
  2. Step 2: Convert to fraction form
    14,471.80/21,702.30 = 5,704.90/x
  3. Step 3: Cross multiply
    14,471.80x = 21,702.30 × 5,704.90
  4. Step 4: Simplify right side
    14,471.80x = 123,809,451.27
  5. Step 5: Solve for x
    x = 123,809,451.27/14,471.80
  6. Step 6: Final answer
    x = 8,555.22

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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.