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Finding the Fourth Proportional to 64,289.89, 88,719.46 and 35,996.05

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Solution

The fourth proportional to 64,289.89, 88,719.46 and 35,996.05 is: 49,674.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,289.89 : 88,719.46 = 35,996.05 : x
  2. Step 2: Convert to fraction form
    64,289.89/88,719.46 = 35,996.05/x
  3. Step 3: Cross multiply
    64,289.89x = 88,719.46 × 35,996.05
  4. Step 4: Simplify right side
    64,289.89x = 3,193,550,118.13
  5. Step 5: Solve for x
    x = 3,193,550,118.13/64,289.89
  6. Step 6: Final answer
    x = 49,674.22

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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.