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Finding the Fourth Proportional to 28,797.10, 43,192.73 and 7,734.40

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Solution

The fourth proportional to 28,797.10, 43,192.73 and 7,734.40 is: 11,600.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,797.10 : 43,192.73 = 7,734.40 : x
  2. Step 2: Convert to fraction form
    28,797.10/43,192.73 = 7,734.40/x
  3. Step 3: Cross multiply
    28,797.10x = 43,192.73 × 7,734.40
  4. Step 4: Simplify right side
    28,797.10x = 334,069,866.23
  5. Step 5: Solve for x
    x = 334,069,866.23/28,797.10
  6. Step 6: Final answer
    x = 11,600.82

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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.