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Finding the Fourth Proportional to 69,647.99, 104,513.48 and 25,278.20

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Solution

The fourth proportional to 69,647.99, 104,513.48 and 25,278.20 is: 37,932.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,647.99 : 104,513.48 = 25,278.20 : x
  2. Step 2: Convert to fraction form
    69,647.99/104,513.48 = 25,278.20/x
  3. Step 3: Cross multiply
    69,647.99x = 104,513.48 × 25,278.20
  4. Step 4: Simplify right side
    69,647.99x = 2,641,912,487.90
  5. Step 5: Solve for x
    x = 2,641,912,487.90/69,647.99
  6. Step 6: Final answer
    x = 37,932.36

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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.