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Finding the Fourth Proportional to 64,587.52, 89,125.73 and 35,905.44

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Solution

The fourth proportional to 64,587.52, 89,125.73 and 35,905.44 is: 49,546.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,587.52 : 89,125.73 = 35,905.44 : x
  2. Step 2: Convert to fraction form
    64,587.52/89,125.73 = 35,905.44/x
  3. Step 3: Cross multiply
    64,587.52x = 89,125.73 × 35,905.44
  4. Step 4: Simplify right side
    64,587.52x = 3,200,098,378.02
  5. Step 5: Solve for x
    x = 3,200,098,378.02/64,587.52
  6. Step 6: Final answer
    x = 49,546.70

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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.