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Finding the Fourth Proportional to 17,133.40, 25,702.80 and 5,447.80

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Solution

The fourth proportional to 17,133.40, 25,702.80 and 5,447.80 is: 8,172.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,133.40 : 25,702.80 = 5,447.80 : x
  2. Step 2: Convert to fraction form
    17,133.40/25,702.80 = 5,447.80/x
  3. Step 3: Cross multiply
    17,133.40x = 25,702.80 × 5,447.80
  4. Step 4: Simplify right side
    17,133.40x = 140,023,713.84
  5. Step 5: Solve for x
    x = 140,023,713.84/17,133.40
  6. Step 6: Final answer
    x = 8,172.56

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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.