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Finding the Fourth Proportional to 66,906.91, 100,360.54 and 22,564.81

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Solution

The fourth proportional to 66,906.91, 100,360.54 and 22,564.81 is: 33,847.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,906.91 : 100,360.54 = 22,564.81 : x
  2. Step 2: Convert to fraction form
    66,906.91/100,360.54 = 22,564.81/x
  3. Step 3: Cross multiply
    66,906.91x = 100,360.54 × 22,564.81
  4. Step 4: Simplify right side
    66,906.91x = 2,264,616,670.25
  5. Step 5: Solve for x
    x = 2,264,616,670.25/66,906.91
  6. Step 6: Final answer
    x = 33,847.28

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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.