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Finding the Fourth Proportional to 45,509.76, 68,295.39 and 15,927.86

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Solution

The fourth proportional to 45,509.76, 68,295.39 and 15,927.86 is: 23,902.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,509.76 : 68,295.39 = 15,927.86 : x
  2. Step 2: Convert to fraction form
    45,509.76/68,295.39 = 15,927.86/x
  3. Step 3: Cross multiply
    45,509.76x = 68,295.39 × 15,927.86
  4. Step 4: Simplify right side
    45,509.76x = 1,087,799,069.09
  5. Step 5: Solve for x
    x = 1,087,799,069.09/45,509.76
  6. Step 6: Final answer
    x = 23,902.54

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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.