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Finding the Fourth Proportional to 21,697.62, 32,546.19 and 5,281.62

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Solution

The fourth proportional to 21,697.62, 32,546.19 and 5,281.62 is: 7,922.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,697.62 : 32,546.19 = 5,281.62 : x
  2. Step 2: Convert to fraction form
    21,697.62/32,546.19 = 5,281.62/x
  3. Step 3: Cross multiply
    21,697.62x = 32,546.19 × 5,281.62
  4. Step 4: Simplify right side
    21,697.62x = 171,896,608.03
  5. Step 5: Solve for x
    x = 171,896,608.03/21,697.62
  6. Step 6: Final answer
    x = 7,922.37

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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.