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Finding the Fourth Proportional to 45,686.52, 68,529.78 and 17,228.88

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Solution

The fourth proportional to 45,686.52, 68,529.78 and 17,228.88 is: 25,843.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,686.52 : 68,529.78 = 17,228.88 : x
  2. Step 2: Convert to fraction form
    45,686.52/68,529.78 = 17,228.88/x
  3. Step 3: Cross multiply
    45,686.52x = 68,529.78 × 17,228.88
  4. Step 4: Simplify right side
    45,686.52x = 1,180,691,356.05
  5. Step 5: Solve for x
    x = 1,180,691,356.05/45,686.52
  6. Step 6: Final answer
    x = 25,843.32

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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.