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Finding the Fourth Proportional to 45,871.77, 68,817.54 and 14,281.17

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Solution

The fourth proportional to 45,871.77, 68,817.54 and 14,281.17 is: 21,424.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,871.77 : 68,817.54 = 14,281.17 : x
  2. Step 2: Convert to fraction form
    45,871.77/68,817.54 = 14,281.17/x
  3. Step 3: Cross multiply
    45,871.77x = 68,817.54 × 14,281.17
  4. Step 4: Simplify right side
    45,871.77x = 982,794,987.72
  5. Step 5: Solve for x
    x = 982,794,987.72/45,871.77
  6. Step 6: Final answer
    x = 21,424.83

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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.