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Finding the Fourth Proportional to 69,449.63, 95,846.36 and 39,240.50

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Solution

The fourth proportional to 69,449.63, 95,846.36 and 39,240.50 is: 54,155.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,449.63 : 95,846.36 = 39,240.50 : x
  2. Step 2: Convert to fraction form
    69,449.63/95,846.36 = 39,240.50/x
  3. Step 3: Cross multiply
    69,449.63x = 95,846.36 × 39,240.50
  4. Step 4: Simplify right side
    69,449.63x = 3,761,058,414.15
  5. Step 5: Solve for x
    x = 3,761,058,414.15/69,449.63
  6. Step 6: Final answer
    x = 54,155.20

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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.