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Finding the Fourth Proportional to 84,840.40, 127,260.60 and 34,922.80

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Solution

The fourth proportional to 84,840.40, 127,260.60 and 34,922.80 is: 52,384.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,840.40 : 127,260.60 = 34,922.80 : x
  2. Step 2: Convert to fraction form
    84,840.40/127,260.60 = 34,922.80/x
  3. Step 3: Cross multiply
    84,840.40x = 127,260.60 × 34,922.80
  4. Step 4: Simplify right side
    84,840.40x = 4,444,296,481.68
  5. Step 5: Solve for x
    x = 4,444,296,481.68/84,840.40
  6. Step 6: Final answer
    x = 52,384.20

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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.