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Finding the Fourth Proportional to 64,897.92, 89,559.20 and 36,603.61

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Solution

The fourth proportional to 64,897.92, 89,559.20 and 36,603.61 is: 50,513.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,897.92 : 89,559.20 = 36,603.61 : x
  2. Step 2: Convert to fraction form
    64,897.92/89,559.20 = 36,603.61/x
  3. Step 3: Cross multiply
    64,897.92x = 89,559.20 × 36,603.61
  4. Step 4: Simplify right side
    64,897.92x = 3,278,189,896.32
  5. Step 5: Solve for x
    x = 3,278,189,896.32/64,897.92
  6. Step 6: Final answer
    x = 50,513.02

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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.