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Finding the Fourth Proportional to 45,559.86, 68,340.24 and 15,978.41

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Solution

The fourth proportional to 45,559.86, 68,340.24 and 15,978.41 is: 23,967.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,559.86 : 68,340.24 = 15,978.41 : x
  2. Step 2: Convert to fraction form
    45,559.86/68,340.24 = 15,978.41/x
  3. Step 3: Cross multiply
    45,559.86x = 68,340.24 × 15,978.41
  4. Step 4: Simplify right side
    45,559.86x = 1,091,968,032.52
  5. Step 5: Solve for x
    x = 1,091,968,032.52/45,559.86
  6. Step 6: Final answer
    x = 23,967.77

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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.