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Finding the Fourth Proportional to 53,622, 73,998.42 and 31,270.32

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Solution

The fourth proportional to 53,622, 73,998.42 and 31,270.32 is: 43,153.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,622 : 73,998.42 = 31,270.32 : x
  2. Step 2: Convert to fraction form
    53,622/73,998.42 = 31,270.32/x
  3. Step 3: Cross multiply
    53,622x = 73,998.42 × 31,270.32
  4. Step 4: Simplify right side
    53,622x = 2,313,954,272.89
  5. Step 5: Solve for x
    x = 2,313,954,272.89/53,622
  6. Step 6: Final answer
    x = 43,153.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.