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Finding the Fourth Proportional to 64,659.39, 89,230.76 and 36,365.09

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Solution

The fourth proportional to 64,659.39, 89,230.76 and 36,365.09 is: 50,184.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,659.39 : 89,230.76 = 36,365.09 : x
  2. Step 2: Convert to fraction form
    64,659.39/89,230.76 = 36,365.09/x
  3. Step 3: Cross multiply
    64,659.39x = 89,230.76 × 36,365.09
  4. Step 4: Simplify right side
    64,659.39x = 3,244,883,990.19
  5. Step 5: Solve for x
    x = 3,244,883,990.19/64,659.39
  6. Step 6: Final answer
    x = 50,184.27

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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.