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Finding the Fourth Proportional to 81,626.74, 122,410.95 and 29,025.74

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Solution

The fourth proportional to 81,626.74, 122,410.95 and 29,025.74 is: 43,528.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,626.74 : 122,410.95 = 29,025.74 : x
  2. Step 2: Convert to fraction form
    81,626.74/122,410.95 = 29,025.74/x
  3. Step 3: Cross multiply
    81,626.74x = 122,410.95 × 29,025.74
  4. Step 4: Simplify right side
    81,626.74x = 3,553,068,605.03
  5. Step 5: Solve for x
    x = 3,553,068,605.03/81,626.74
  6. Step 6: Final answer
    x = 43,528.24

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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.