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Finding the Fourth Proportional to 20,003.16, 29,958.03 and 15,815.04

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Solution

The fourth proportional to 20,003.16, 29,958.03 and 15,815.04 is: 23,685.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,003.16 : 29,958.03 = 15,815.04 : x
  2. Step 2: Convert to fraction form
    20,003.16/29,958.03 = 15,815.04/x
  3. Step 3: Cross multiply
    20,003.16x = 29,958.03 × 15,815.04
  4. Step 4: Simplify right side
    20,003.16x = 473,787,442.77
  5. Step 5: Solve for x
    x = 473,787,442.77/20,003.16
  6. Step 6: Final answer
    x = 23,685.63

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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.