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Finding the Fourth Proportional to 17,958.78, 24,783.21 and 10,000.98

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Solution

The fourth proportional to 17,958.78, 24,783.21 and 10,000.98 is: 13,801.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,958.78 : 24,783.21 = 10,000.98 : x
  2. Step 2: Convert to fraction form
    17,958.78/24,783.21 = 10,000.98/x
  3. Step 3: Cross multiply
    17,958.78x = 24,783.21 × 10,000.98
  4. Step 4: Simplify right side
    17,958.78x = 247,856,387.55
  5. Step 5: Solve for x
    x = 247,856,387.55/17,958.78
  6. Step 6: Final answer
    x = 13,801.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.