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Finding the Fourth Proportional to 13,293.60, 19,940.04 and 4,059.60

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Solution

The fourth proportional to 13,293.60, 19,940.04 and 4,059.60 is: 6,089.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.60 : 19,940.04 = 4,059.60 : x
  2. Step 2: Convert to fraction form
    13,293.60/19,940.04 = 4,059.60/x
  3. Step 3: Cross multiply
    13,293.60x = 19,940.04 × 4,059.60
  4. Step 4: Simplify right side
    13,293.60x = 80,948,586.38
  5. Step 5: Solve for x
    x = 80,948,586.38/13,293.60
  6. Step 6: Final answer
    x = 6,089.29

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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.