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Finding the Fourth Proportional to 13,662.96, 20,492.40 and 3,801.22

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Solution

The fourth proportional to 13,662.96, 20,492.40 and 3,801.22 is: 5,701.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,662.96 : 20,492.40 = 3,801.22 : x
  2. Step 2: Convert to fraction form
    13,662.96/20,492.40 = 3,801.22/x
  3. Step 3: Cross multiply
    13,662.96x = 20,492.40 × 3,801.22
  4. Step 4: Simplify right side
    13,662.96x = 77,896,120.73
  5. Step 5: Solve for x
    x = 77,896,120.73/13,662.96
  6. Step 6: Final answer
    x = 5,701.26

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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.