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Finding the Fourth Proportional to 65,025.79, 89,735.31 and 36,345.41

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Solution

The fourth proportional to 65,025.79, 89,735.31 and 36,345.41 is: 50,156.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,025.79 : 89,735.31 = 36,345.41 : x
  2. Step 2: Convert to fraction form
    65,025.79/89,735.31 = 36,345.41/x
  3. Step 3: Cross multiply
    65,025.79x = 89,735.31 × 36,345.41
  4. Step 4: Simplify right side
    65,025.79x = 3,261,466,521.26
  5. Step 5: Solve for x
    x = 3,261,466,521.26/65,025.79
  6. Step 6: Final answer
    x = 50,156.51

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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.