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Finding the Fourth Proportional to 28,361.65, 42,544.43 and 9,634.04

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Solution

The fourth proportional to 28,361.65, 42,544.43 and 9,634.04 is: 14,451.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,361.65 : 42,544.43 = 9,634.04 : x
  2. Step 2: Convert to fraction form
    28,361.65/42,544.43 = 9,634.04/x
  3. Step 3: Cross multiply
    28,361.65x = 42,544.43 × 9,634.04
  4. Step 4: Simplify right side
    28,361.65x = 409,874,740.40
  5. Step 5: Solve for x
    x = 409,874,740.40/28,361.65
  6. Step 6: Final answer
    x = 14,451.72

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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.