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Finding the Fourth Proportional to 14,622.60, 21,936.22 and 4,761.08

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Solution

The fourth proportional to 14,622.60, 21,936.22 and 4,761.08 is: 7,142.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,622.60 : 21,936.22 = 4,761.08 : x
  2. Step 2: Convert to fraction form
    14,622.60/21,936.22 = 4,761.08/x
  3. Step 3: Cross multiply
    14,622.60x = 21,936.22 × 4,761.08
  4. Step 4: Simplify right side
    14,622.60x = 104,440,098.32
  5. Step 5: Solve for x
    x = 104,440,098.32/14,622.60
  6. Step 6: Final answer
    x = 7,142.38

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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.