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Finding the Fourth Proportional to 64,625.79, 89,182.38 and 35,945.31

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Solution

The fourth proportional to 64,625.79, 89,182.38 and 35,945.31 is: 49,603.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,625.79 : 89,182.38 = 35,945.31 : x
  2. Step 2: Convert to fraction form
    64,625.79/89,182.38 = 35,945.31/x
  3. Step 3: Cross multiply
    64,625.79x = 89,182.38 × 35,945.31
  4. Step 4: Simplify right side
    64,625.79x = 3,205,688,295.64
  5. Step 5: Solve for x
    x = 3,205,688,295.64/64,625.79
  6. Step 6: Final answer
    x = 49,603.85

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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.