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Finding the Fourth Proportional to 20,594.16, 30,900.84 and 12,273.84

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Solution

The fourth proportional to 20,594.16, 30,900.84 and 12,273.84 is: 18,416.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,594.16 : 30,900.84 = 12,273.84 : x
  2. Step 2: Convert to fraction form
    20,594.16/30,900.84 = 12,273.84/x
  3. Step 3: Cross multiply
    20,594.16x = 30,900.84 × 12,273.84
  4. Step 4: Simplify right side
    20,594.16x = 379,271,966.03
  5. Step 5: Solve for x
    x = 379,271,966.03/20,594.16
  6. Step 6: Final answer
    x = 18,416.48

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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.