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Finding the Fourth Proportional to 40,609.06, 60,905.22 and 15,640.54

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Solution

The fourth proportional to 40,609.06, 60,905.22 and 15,640.54 is: 23,457.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,609.06 : 60,905.22 = 15,640.54 : x
  2. Step 2: Convert to fraction form
    40,609.06/60,905.22 = 15,640.54/x
  3. Step 3: Cross multiply
    40,609.06x = 60,905.22 × 15,640.54
  4. Step 4: Simplify right side
    40,609.06x = 952,590,529.62
  5. Step 5: Solve for x
    x = 952,590,529.62/40,609.06
  6. Step 6: Final answer
    x = 23,457.59

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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.