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Finding the Fourth Proportional to 52,456.46, 72,390.46 and 28,583.54

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Solution

The fourth proportional to 52,456.46, 72,390.46 and 28,583.54 is: 39,445.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,456.46 : 72,390.46 = 28,583.54 : x
  2. Step 2: Convert to fraction form
    52,456.46/72,390.46 = 28,583.54/x
  3. Step 3: Cross multiply
    52,456.46x = 72,390.46 × 28,583.54
  4. Step 4: Simplify right side
    52,456.46x = 2,069,175,609.03
  5. Step 5: Solve for x
    x = 2,069,175,609.03/52,456.46
  6. Step 6: Final answer
    x = 39,445.58

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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.