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Finding the Fourth Proportional to 43,230.48, 64,845.72 and 33,384.12

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Solution

The fourth proportional to 43,230.48, 64,845.72 and 33,384.12 is: 50,076.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,230.48 : 64,845.72 = 33,384.12 : x
  2. Step 2: Convert to fraction form
    43,230.48/64,845.72 = 33,384.12/x
  3. Step 3: Cross multiply
    43,230.48x = 64,845.72 × 33,384.12
  4. Step 4: Simplify right side
    43,230.48x = 2,164,817,297.97
  5. Step 5: Solve for x
    x = 2,164,817,297.97/43,230.48
  6. Step 6: Final answer
    x = 50,076.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.