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Finding the Fourth Proportional to 43,894.63, 65,848.29 and 14,305.15

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Solution

The fourth proportional to 43,894.63, 65,848.29 and 14,305.15 is: 21,459.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,894.63 : 65,848.29 = 14,305.15 : x
  2. Step 2: Convert to fraction form
    43,894.63/65,848.29 = 14,305.15/x
  3. Step 3: Cross multiply
    43,894.63x = 65,848.29 × 14,305.15
  4. Step 4: Simplify right side
    43,894.63x = 941,969,665.69
  5. Step 5: Solve for x
    x = 941,969,665.69/43,894.63
  6. Step 6: Final answer
    x = 21,459.79

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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.