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Finding the Fourth Proportional to 81,801.61, 122,705.16 and 22,632.32

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Solution

The fourth proportional to 81,801.61, 122,705.16 and 22,632.32 is: 33,949.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,801.61 : 122,705.16 = 22,632.32 : x
  2. Step 2: Convert to fraction form
    81,801.61/122,705.16 = 22,632.32/x
  3. Step 3: Cross multiply
    81,801.61x = 122,705.16 × 22,632.32
  4. Step 4: Simplify right side
    81,801.61x = 2,777,102,333.61
  5. Step 5: Solve for x
    x = 2,777,102,333.61/81,801.61
  6. Step 6: Final answer
    x = 33,949.24

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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.