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Finding the Fourth Proportional to 45,879.42, 68,812.65 and 14,710.62

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Solution

The fourth proportional to 45,879.42, 68,812.65 and 14,710.62 is: 22,063.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,879.42 : 68,812.65 = 14,710.62 : x
  2. Step 2: Convert to fraction form
    45,879.42/68,812.65 = 14,710.62/x
  3. Step 3: Cross multiply
    45,879.42x = 68,812.65 × 14,710.62
  4. Step 4: Simplify right side
    45,879.42x = 1,012,276,745.34
  5. Step 5: Solve for x
    x = 1,012,276,745.34/45,879.42
  6. Step 6: Final answer
    x = 22,063.85

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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.