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Finding the Fourth Proportional to 84,577.40, 126,810.92 and 27,644.30

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Solution

The fourth proportional to 84,577.40, 126,810.92 and 27,644.30 is: 41,448.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,577.40 : 126,810.92 = 27,644.30 : x
  2. Step 2: Convert to fraction form
    84,577.40/126,810.92 = 27,644.30/x
  3. Step 3: Cross multiply
    84,577.40x = 126,810.92 × 27,644.30
  4. Step 4: Simplify right side
    84,577.40x = 3,505,599,115.76
  5. Step 5: Solve for x
    x = 3,505,599,115.76/84,577.40
  6. Step 6: Final answer
    x = 41,448.41

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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.