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Finding the Fourth Proportional to 84,389.70, 126,584.55 and 22,060.20

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Solution

The fourth proportional to 84,389.70, 126,584.55 and 22,060.20 is: 33,090.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,389.70 : 126,584.55 = 22,060.20 : x
  2. Step 2: Convert to fraction form
    84,389.70/126,584.55 = 22,060.20/x
  3. Step 3: Cross multiply
    84,389.70x = 126,584.55 × 22,060.20
  4. Step 4: Simplify right side
    84,389.70x = 2,792,480,489.91
  5. Step 5: Solve for x
    x = 2,792,480,489.91/84,389.70
  6. Step 6: Final answer
    x = 33,090.30

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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.