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Finding the Fourth Proportional to 69,957.62, 104,921.48 and 20,024.31

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Solution

The fourth proportional to 69,957.62, 104,921.48 and 20,024.31 is: 30,032.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,957.62 : 104,921.48 = 20,024.31 : x
  2. Step 2: Convert to fraction form
    69,957.62/104,921.48 = 20,024.31/x
  3. Step 3: Cross multiply
    69,957.62x = 104,921.48 × 20,024.31
  4. Step 4: Simplify right side
    69,957.62x = 2,100,980,141.06
  5. Step 5: Solve for x
    x = 2,100,980,141.06/69,957.62
  6. Step 6: Final answer
    x = 30,032.19

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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.