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Finding the Fourth Proportional to 14,391.72, 19,852.02 and 8,793

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Solution

The fourth proportional to 14,391.72, 19,852.02 and 8,793 is: 12,129.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.72 : 19,852.02 = 8,793 : x
  2. Step 2: Convert to fraction form
    14,391.72/19,852.02 = 8,793/x
  3. Step 3: Cross multiply
    14,391.72x = 19,852.02 × 8,793
  4. Step 4: Simplify right side
    14,391.72x = 174,558,811.86
  5. Step 5: Solve for x
    x = 174,558,811.86/14,391.72
  6. Step 6: Final answer
    x = 12,129.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.