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Finding the Fourth Proportional to 22,153.65, 33,234.69 and 7,164.81

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Solution

The fourth proportional to 22,153.65, 33,234.69 and 7,164.81 is: 10,748.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,153.65 : 33,234.69 = 7,164.81 : x
  2. Step 2: Convert to fraction form
    22,153.65/33,234.69 = 7,164.81/x
  3. Step 3: Cross multiply
    22,153.65x = 33,234.69 × 7,164.81
  4. Step 4: Simplify right side
    22,153.65x = 238,120,239.26
  5. Step 5: Solve for x
    x = 238,120,239.26/22,153.65
  6. Step 6: Final answer
    x = 10,748.58

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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.