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Finding the Fourth Proportional to 38,468.40, 57,702.60 and 36,164.40

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Solution

The fourth proportional to 38,468.40, 57,702.60 and 36,164.40 is: 54,246.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,468.40 : 57,702.60 = 36,164.40 : x
  2. Step 2: Convert to fraction form
    38,468.40/57,702.60 = 36,164.40/x
  3. Step 3: Cross multiply
    38,468.40x = 57,702.60 × 36,164.40
  4. Step 4: Simplify right side
    38,468.40x = 2,086,779,907.44
  5. Step 5: Solve for x
    x = 2,086,779,907.44/38,468.40
  6. Step 6: Final answer
    x = 54,246.60

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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.