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Finding the Fourth Proportional to 28,917.84, 43,381.08 and 9,197.04

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Solution

The fourth proportional to 28,917.84, 43,381.08 and 9,197.04 is: 13,796.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,917.84 : 43,381.08 = 9,197.04 : x
  2. Step 2: Convert to fraction form
    28,917.84/43,381.08 = 9,197.04/x
  3. Step 3: Cross multiply
    28,917.84x = 43,381.08 × 9,197.04
  4. Step 4: Simplify right side
    28,917.84x = 398,977,528.00
  5. Step 5: Solve for x
    x = 398,977,528.00/28,917.84
  6. Step 6: Final answer
    x = 13,796.93

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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.