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Finding the Fourth Proportional to 14,978.96, 22,487.88 and 11,518.64

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Solution

The fourth proportional to 14,978.96, 22,487.88 and 11,518.64 is: 17,292.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,978.96 : 22,487.88 = 11,518.64 : x
  2. Step 2: Convert to fraction form
    14,978.96/22,487.88 = 11,518.64/x
  3. Step 3: Cross multiply
    14,978.96x = 22,487.88 × 11,518.64
  4. Step 4: Simplify right side
    14,978.96x = 259,029,794.08
  5. Step 5: Solve for x
    x = 259,029,794.08/14,978.96
  6. Step 6: Final answer
    x = 17,292.91

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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.