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Finding the Fourth Proportional to 13,203.56, 19,806 and 3,342.92

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Solution

The fourth proportional to 13,203.56, 19,806 and 3,342.92 is: 5,014.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203.56 : 19,806 = 3,342.92 : x
  2. Step 2: Convert to fraction form
    13,203.56/19,806 = 3,342.92/x
  3. Step 3: Cross multiply
    13,203.56x = 19,806 × 3,342.92
  4. Step 4: Simplify right side
    13,203.56x = 66,209,873.52
  5. Step 5: Solve for x
    x = 66,209,873.52/13,203.56
  6. Step 6: Final answer
    x = 5,014.55

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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.