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Finding the Fourth Proportional to 13,106.48, 19,659.48 and 3,245.76

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Solution

The fourth proportional to 13,106.48, 19,659.48 and 3,245.76 is: 4,868.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106.48 : 19,659.48 = 3,245.76 : x
  2. Step 2: Convert to fraction form
    13,106.48/19,659.48 = 3,245.76/x
  3. Step 3: Cross multiply
    13,106.48x = 19,659.48 × 3,245.76
  4. Step 4: Simplify right side
    13,106.48x = 63,809,953.80
  5. Step 5: Solve for x
    x = 63,809,953.80/13,106.48
  6. Step 6: Final answer
    x = 4,868.58

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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.