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Finding the Fourth Proportional to 64,487.37, 89,035.94 and 49,353.00

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Solution

The fourth proportional to 64,487.37, 89,035.94 and 49,353.00 is: 68,140.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,487.37 : 89,035.94 = 49,353.00 : x
  2. Step 2: Convert to fraction form
    64,487.37/89,035.94 = 49,353.00/x
  3. Step 3: Cross multiply
    64,487.37x = 89,035.94 × 49,353.00
  4. Step 4: Simplify right side
    64,487.37x = 4,394,190,536.32
  5. Step 5: Solve for x
    x = 4,394,190,536.32/64,487.37
  6. Step 6: Final answer
    x = 68,140.32

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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.