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Finding the Fourth Proportional to 69,592.96, 104,418.72 and 28,029.76

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Solution

The fourth proportional to 69,592.96, 104,418.72 and 28,029.76 is: 42,056.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,592.96 : 104,418.72 = 28,029.76 : x
  2. Step 2: Convert to fraction form
    69,592.96/104,418.72 = 28,029.76/x
  3. Step 3: Cross multiply
    69,592.96x = 104,418.72 × 28,029.76
  4. Step 4: Simplify right side
    69,592.96x = 2,926,831,661.11
  5. Step 5: Solve for x
    x = 2,926,831,661.11/69,592.96
  6. Step 6: Final answer
    x = 42,056.43

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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.