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Finding the Fourth Proportional to 69,047.14, 103,570.72 and 21,669.54

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Solution

The fourth proportional to 69,047.14, 103,570.72 and 21,669.54 is: 32,504.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,047.14 : 103,570.72 = 21,669.54 : x
  2. Step 2: Convert to fraction form
    69,047.14/103,570.72 = 21,669.54/x
  3. Step 3: Cross multiply
    69,047.14x = 103,570.72 × 21,669.54
  4. Step 4: Simplify right side
    69,047.14x = 2,244,330,264.07
  5. Step 5: Solve for x
    x = 2,244,330,264.07/69,047.14
  6. Step 6: Final answer
    x = 32,504.32

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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.