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Finding the Fourth Proportional to 64,624.32, 89,173.80 and 35,936.80

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Solution

The fourth proportional to 64,624.32, 89,173.80 and 35,936.80 is: 49,588.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,624.32 : 89,173.80 = 35,936.80 : x
  2. Step 2: Convert to fraction form
    64,624.32/89,173.80 = 35,936.80/x
  3. Step 3: Cross multiply
    64,624.32x = 89,173.80 × 35,936.80
  4. Step 4: Simplify right side
    64,624.32x = 3,204,621,015.84
  5. Step 5: Solve for x
    x = 3,204,621,015.84/64,624.32
  6. Step 6: Final answer
    x = 49,588.47

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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.