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Finding the Fourth Proportional to 61,286.02, 84,582.60 and 34,428.52

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Solution

The fourth proportional to 61,286.02, 84,582.60 and 34,428.52 is: 47,515.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,286.02 : 84,582.60 = 34,428.52 : x
  2. Step 2: Convert to fraction form
    61,286.02/84,582.60 = 34,428.52/x
  3. Step 3: Cross multiply
    61,286.02x = 84,582.60 × 34,428.52
  4. Step 4: Simplify right side
    61,286.02x = 2,912,053,735.75
  5. Step 5: Solve for x
    x = 2,912,053,735.75/61,286.02
  6. Step 6: Final answer
    x = 47,515.79

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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.