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Finding the Fourth Proportional to 81,693.48, 122,548.74 and 22,529.16

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Solution

The fourth proportional to 81,693.48, 122,548.74 and 22,529.16 is: 33,796.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,693.48 : 122,548.74 = 22,529.16 : x
  2. Step 2: Convert to fraction form
    81,693.48/122,548.74 = 22,529.16/x
  3. Step 3: Cross multiply
    81,693.48x = 122,548.74 × 22,529.16
  4. Step 4: Simplify right side
    81,693.48x = 2,760,920,171.26
  5. Step 5: Solve for x
    x = 2,760,920,171.26/81,693.48
  6. Step 6: Final answer
    x = 33,796.09

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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.