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Finding the Fourth Proportional to 32,989.75, 49,491.92 and 12,213.25

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Solution

The fourth proportional to 32,989.75, 49,491.92 and 12,213.25 is: 18,322.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,989.75 : 49,491.92 = 12,213.25 : x
  2. Step 2: Convert to fraction form
    32,989.75/49,491.92 = 12,213.25/x
  3. Step 3: Cross multiply
    32,989.75x = 49,491.92 × 12,213.25
  4. Step 4: Simplify right side
    32,989.75x = 604,457,191.94
  5. Step 5: Solve for x
    x = 604,457,191.94/32,989.75
  6. Step 6: Final answer
    x = 18,322.58

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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.