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Finding the Fourth Proportional to 13,951.64, 20,925.95 and 4,091.01

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Solution

The fourth proportional to 13,951.64, 20,925.95 and 4,091.01 is: 6,136.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,951.64 : 20,925.95 = 4,091.01 : x
  2. Step 2: Convert to fraction form
    13,951.64/20,925.95 = 4,091.01/x
  3. Step 3: Cross multiply
    13,951.64x = 20,925.95 × 4,091.01
  4. Step 4: Simplify right side
    13,951.64x = 85,608,171.78
  5. Step 5: Solve for x
    x = 85,608,171.78/13,951.64
  6. Step 6: Final answer
    x = 6,136.06

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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.