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Finding the Fourth Proportional to 11,492.60, 17,238.90 and 3,702.20

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Solution

The fourth proportional to 11,492.60, 17,238.90 and 3,702.20 is: 5,553.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,492.60 : 17,238.90 = 3,702.20 : x
  2. Step 2: Convert to fraction form
    11,492.60/17,238.90 = 3,702.20/x
  3. Step 3: Cross multiply
    11,492.60x = 17,238.90 × 3,702.20
  4. Step 4: Simplify right side
    11,492.60x = 63,821,855.58
  5. Step 5: Solve for x
    x = 63,821,855.58/11,492.60
  6. Step 6: Final answer
    x = 5,553.30

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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.