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Finding the Fourth Proportional to 14,050.92, 21,079.47 and 5,285.82

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Solution

The fourth proportional to 14,050.92, 21,079.47 and 5,285.82 is: 7,929.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,050.92 : 21,079.47 = 5,285.82 : x
  2. Step 2: Convert to fraction form
    14,050.92/21,079.47 = 5,285.82/x
  3. Step 3: Cross multiply
    14,050.92x = 21,079.47 × 5,285.82
  4. Step 4: Simplify right side
    14,050.92x = 111,422,284.12
  5. Step 5: Solve for x
    x = 111,422,284.12/14,050.92
  6. Step 6: Final answer
    x = 7,929.89

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.