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Finding the Fourth Proportional to 12,573.97, 18,865.05 and 5,999.30

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Solution

The fourth proportional to 12,573.97, 18,865.05 and 5,999.30 is: 9,000.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573.97 : 18,865.05 = 5,999.30 : x
  2. Step 2: Convert to fraction form
    12,573.97/18,865.05 = 5,999.30/x
  3. Step 3: Cross multiply
    12,573.97x = 18,865.05 × 5,999.30
  4. Step 4: Simplify right side
    12,573.97x = 113,177,064.47
  5. Step 5: Solve for x
    x = 113,177,064.47/12,573.97
  6. Step 6: Final answer
    x = 9,000.91

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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.