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Finding the Fourth Proportional to 20,463.76, 30,667.62 and 15,462.01

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Solution

The fourth proportional to 20,463.76, 30,667.62 and 15,462.01 is: 23,171.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,463.76 : 30,667.62 = 15,462.01 : x
  2. Step 2: Convert to fraction form
    20,463.76/30,667.62 = 15,462.01/x
  3. Step 3: Cross multiply
    20,463.76x = 30,667.62 × 15,462.01
  4. Step 4: Simplify right side
    20,463.76x = 474,182,893.78
  5. Step 5: Solve for x
    x = 474,182,893.78/20,463.76
  6. Step 6: Final answer
    x = 23,171.84

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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.