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Finding the Fourth Proportional to 13,364.40, 20,041.08 and 5,043

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Solution

The fourth proportional to 13,364.40, 20,041.08 and 5,043 is: 7,562.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,364.40 : 20,041.08 = 5,043 : x
  2. Step 2: Convert to fraction form
    13,364.40/20,041.08 = 5,043/x
  3. Step 3: Cross multiply
    13,364.40x = 20,041.08 × 5,043
  4. Step 4: Simplify right side
    13,364.40x = 101,067,166.44
  5. Step 5: Solve for x
    x = 101,067,166.44/13,364.40
  6. Step 6: Final answer
    x = 7,562.42

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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.