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Finding the Fourth Proportional to 13,168.32, 19,752.84 and 7,361.88

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Solution

The fourth proportional to 13,168.32, 19,752.84 and 7,361.88 is: 11,043.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168.32 : 19,752.84 = 7,361.88 : x
  2. Step 2: Convert to fraction form
    13,168.32/19,752.84 = 7,361.88/x
  3. Step 3: Cross multiply
    13,168.32x = 19,752.84 × 7,361.88
  4. Step 4: Simplify right side
    13,168.32x = 145,418,037.74
  5. Step 5: Solve for x
    x = 145,418,037.74/13,168.32
  6. Step 6: Final answer
    x = 11,043.02

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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.