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Finding the Fourth Proportional to 41,129.60, 61,672.80 and 14,830.40

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Solution

The fourth proportional to 41,129.60, 61,672.80 and 14,830.40 is: 22,237.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,129.60 : 61,672.80 = 14,830.40 : x
  2. Step 2: Convert to fraction form
    41,129.60/61,672.80 = 14,830.40/x
  3. Step 3: Cross multiply
    41,129.60x = 61,672.80 × 14,830.40
  4. Step 4: Simplify right side
    41,129.60x = 914,632,293.12
  5. Step 5: Solve for x
    x = 914,632,293.12/41,129.60
  6. Step 6: Final answer
    x = 22,237.81

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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.