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Finding the Fourth Proportional to 57,963.40, 86,945.10 and 34,246.60

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Solution

The fourth proportional to 57,963.40, 86,945.10 and 34,246.60 is: 51,369.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,963.40 : 86,945.10 = 34,246.60 : x
  2. Step 2: Convert to fraction form
    57,963.40/86,945.10 = 34,246.60/x
  3. Step 3: Cross multiply
    57,963.40x = 86,945.10 × 34,246.60
  4. Step 4: Simplify right side
    57,963.40x = 2,977,574,061.66
  5. Step 5: Solve for x
    x = 2,977,574,061.66/57,963.40
  6. Step 6: Final answer
    x = 51,369.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.