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Finding the Fourth Proportional to 29,008.70, 43,516.08 and 12,370.49

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Solution

The fourth proportional to 29,008.70, 43,516.08 and 12,370.49 is: 18,557.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,008.70 : 43,516.08 = 12,370.49 : x
  2. Step 2: Convert to fraction form
    29,008.70/43,516.08 = 12,370.49/x
  3. Step 3: Cross multiply
    29,008.70x = 43,516.08 × 12,370.49
  4. Step 4: Simplify right side
    29,008.70x = 538,315,232.48
  5. Step 5: Solve for x
    x = 538,315,232.48/29,008.70
  6. Step 6: Final answer
    x = 18,557.03

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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.