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Finding the Fourth Proportional to 15,104.52, 20,843.70 and 9,133.98

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Solution

The fourth proportional to 15,104.52, 20,843.70 and 9,133.98 is: 12,604.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,104.52 : 20,843.70 = 9,133.98 : x
  2. Step 2: Convert to fraction form
    15,104.52/20,843.70 = 9,133.98/x
  3. Step 3: Cross multiply
    15,104.52x = 20,843.70 × 9,133.98
  4. Step 4: Simplify right side
    15,104.52x = 190,385,938.93
  5. Step 5: Solve for x
    x = 190,385,938.93/15,104.52
  6. Step 6: Final answer
    x = 12,604.57

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1.5x scale

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.