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Finding the Fourth Proportional to 20,468.01, 30,702.02 and 5,676.93

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Solution

The fourth proportional to 20,468.01, 30,702.02 and 5,676.93 is: 8,515.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,468.01 : 30,702.02 = 5,676.93 : x
  2. Step 2: Convert to fraction form
    20,468.01/30,702.02 = 5,676.93/x
  3. Step 3: Cross multiply
    20,468.01x = 30,702.02 × 5,676.93
  4. Step 4: Simplify right side
    20,468.01x = 174,293,326.44
  5. Step 5: Solve for x
    x = 174,293,326.44/20,468.01
  6. Step 6: Final answer
    x = 8,515.40

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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.