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Finding the Fourth Proportional to 43,629.76, 65,447.04 and 14,045.44

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Solution

The fourth proportional to 43,629.76, 65,447.04 and 14,045.44 is: 21,068.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,629.76 : 65,447.04 = 14,045.44 : x
  2. Step 2: Convert to fraction form
    43,629.76/65,447.04 = 14,045.44/x
  3. Step 3: Cross multiply
    43,629.76x = 65,447.04 × 14,045.44
  4. Step 4: Simplify right side
    43,629.76x = 919,232,473.50
  5. Step 5: Solve for x
    x = 919,232,473.50/43,629.76
  6. Step 6: Final answer
    x = 21,068.93

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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.