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Finding the Fourth Proportional to 14,978.58, 22,468.41 and 5,617.65

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Solution

The fourth proportional to 14,978.58, 22,468.41 and 5,617.65 is: 8,426.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,978.58 : 22,468.41 = 5,617.65 : x
  2. Step 2: Convert to fraction form
    14,978.58/22,468.41 = 5,617.65/x
  3. Step 3: Cross multiply
    14,978.58x = 22,468.41 × 5,617.65
  4. Step 4: Simplify right side
    14,978.58x = 126,219,663.44
  5. Step 5: Solve for x
    x = 126,219,663.44/14,978.58
  6. Step 6: Final answer
    x = 8,426.68

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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.