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Finding the Fourth Proportional to 51,253.56, 70,730.82 and 28,593

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Solution

The fourth proportional to 51,253.56, 70,730.82 and 28,593 is: 39,458.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,253.56 : 70,730.82 = 28,593 : x
  2. Step 2: Convert to fraction form
    51,253.56/70,730.82 = 28,593/x
  3. Step 3: Cross multiply
    51,253.56x = 70,730.82 × 28,593
  4. Step 4: Simplify right side
    51,253.56x = 2,022,406,336.26
  5. Step 5: Solve for x
    x = 2,022,406,336.26/51,253.56
  6. Step 6: Final answer
    x = 39,458.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.