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Finding the Fourth Proportional to 14,640.58, 20,198.57 and 9,607.60

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Solution

The fourth proportional to 14,640.58, 20,198.57 and 9,607.60 is: 13,254.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.58 : 20,198.57 = 9,607.60 : x
  2. Step 2: Convert to fraction form
    14,640.58/20,198.57 = 9,607.60/x
  3. Step 3: Cross multiply
    14,640.58x = 20,198.57 × 9,607.60
  4. Step 4: Simplify right side
    14,640.58x = 194,059,644.73
  5. Step 5: Solve for x
    x = 194,059,644.73/14,640.58
  6. Step 6: Final answer
    x = 13,254.91

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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.