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Finding the Fourth Proportional to 61,452.31, 84,815.40 and 35,957.20

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Solution

The fourth proportional to 61,452.31, 84,815.40 and 35,957.20 is: 49,627.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,452.31 : 84,815.40 = 35,957.20 : x
  2. Step 2: Convert to fraction form
    61,452.31/84,815.40 = 35,957.20/x
  3. Step 3: Cross multiply
    61,452.31x = 84,815.40 × 35,957.20
  4. Step 4: Simplify right side
    61,452.31x = 3,049,724,300.88
  5. Step 5: Solve for x
    x = 3,049,724,300.88/61,452.31
  6. Step 6: Final answer
    x = 49,627.50

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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.