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Finding the Fourth Proportional to 13,294.55, 19,946.33 and 8,358.41

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Solution

The fourth proportional to 13,294.55, 19,946.33 and 8,358.41 is: 12,540.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,294.55 : 19,946.33 = 8,358.41 : x
  2. Step 2: Convert to fraction form
    13,294.55/19,946.33 = 8,358.41/x
  3. Step 3: Cross multiply
    13,294.55x = 19,946.33 × 8,358.41
  4. Step 4: Simplify right side
    13,294.55x = 166,719,525.30
  5. Step 5: Solve for x
    x = 166,719,525.30/13,294.55
  6. Step 6: Final answer
    x = 12,540.45

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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.