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Finding the Fourth Proportional to 29,079.46, 43,619.46 and 18,698.50

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Solution

The fourth proportional to 29,079.46, 43,619.46 and 18,698.50 is: 28,047.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,079.46 : 43,619.46 = 18,698.50 : x
  2. Step 2: Convert to fraction form
    29,079.46/43,619.46 = 18,698.50/x
  3. Step 3: Cross multiply
    29,079.46x = 43,619.46 × 18,698.50
  4. Step 4: Simplify right side
    29,079.46x = 815,618,472.81
  5. Step 5: Solve for x
    x = 815,618,472.81/29,079.46
  6. Step 6: Final answer
    x = 28,047.92

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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.