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Finding the Fourth Proportional to 21,797.62, 32,621.76 and 15,141.62

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Solution

The fourth proportional to 21,797.62, 32,621.76 and 15,141.62 is: 22,660.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,797.62 : 32,621.76 = 15,141.62 : x
  2. Step 2: Convert to fraction form
    21,797.62/32,621.76 = 15,141.62/x
  3. Step 3: Cross multiply
    21,797.62x = 32,621.76 × 15,141.62
  4. Step 4: Simplify right side
    21,797.62x = 493,946,293.65
  5. Step 5: Solve for x
    x = 493,946,293.65/21,797.62
  6. Step 6: Final answer
    x = 22,660.56

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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.