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Finding the Fourth Proportional to 64,661.84, 89,230.08 and 36,365.84

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Solution

The fourth proportional to 64,661.84, 89,230.08 and 36,365.84 is: 50,183.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,661.84 : 89,230.08 = 36,365.84 : x
  2. Step 2: Convert to fraction form
    64,661.84/89,230.08 = 36,365.84/x
  3. Step 3: Cross multiply
    64,661.84x = 89,230.08 × 36,365.84
  4. Step 4: Simplify right side
    64,661.84x = 3,244,926,812.47
  5. Step 5: Solve for x
    x = 3,244,926,812.47/64,661.84
  6. Step 6: Final answer
    x = 50,183.03

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1.5x scale

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.