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Finding the Fourth Proportional to 18,506.97, 25,533.41 and 10,543.59

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Solution

The fourth proportional to 18,506.97, 25,533.41 and 10,543.59 is: 14,546.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,506.97 : 25,533.41 = 10,543.59 : x
  2. Step 2: Convert to fraction form
    18,506.97/25,533.41 = 10,543.59/x
  3. Step 3: Cross multiply
    18,506.97x = 25,533.41 × 10,543.59
  4. Step 4: Simplify right side
    18,506.97x = 269,213,753.62
  5. Step 5: Solve for x
    x = 269,213,753.62/18,506.97
  6. Step 6: Final answer
    x = 14,546.61

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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.