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Finding the Fourth Proportional to 52,019.46, 71,787.42 and 28,146.60

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Solution

The fourth proportional to 52,019.46, 71,787.42 and 28,146.60 is: 38,842.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,019.46 : 71,787.42 = 28,146.60 : x
  2. Step 2: Convert to fraction form
    52,019.46/71,787.42 = 28,146.60/x
  3. Step 3: Cross multiply
    52,019.46x = 71,787.42 × 28,146.60
  4. Step 4: Simplify right side
    52,019.46x = 2,020,571,795.77
  5. Step 5: Solve for x
    x = 2,020,571,795.77/52,019.46
  6. Step 6: Final answer
    x = 38,842.61

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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.