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Finding the Fourth Proportional to 18,468.53, 27,702.80 and 4,617.53

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Solution

The fourth proportional to 18,468.53, 27,702.80 and 4,617.53 is: 6,926.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,468.53 : 27,702.80 = 4,617.53 : x
  2. Step 2: Convert to fraction form
    18,468.53/27,702.80 = 4,617.53/x
  3. Step 3: Cross multiply
    18,468.53x = 27,702.80 × 4,617.53
  4. Step 4: Simplify right side
    18,468.53x = 127,918,567.80
  5. Step 5: Solve for x
    x = 127,918,567.80/18,468.53
  6. Step 6: Final answer
    x = 6,926.30

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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.