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Finding the Fourth Proportional to 37,492.80, 56,260.80 and 14,121.60

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Solution

The fourth proportional to 37,492.80, 56,260.80 and 14,121.60 is: 21,190.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,492.80 : 56,260.80 = 14,121.60 : x
  2. Step 2: Convert to fraction form
    37,492.80/56,260.80 = 14,121.60/x
  3. Step 3: Cross multiply
    37,492.80x = 56,260.80 × 14,121.60
  4. Step 4: Simplify right side
    37,492.80x = 794,492,513.28
  5. Step 5: Solve for x
    x = 794,492,513.28/37,492.80
  6. Step 6: Final answer
    x = 21,190.54

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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.