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Finding the Fourth Proportional to 14,861.91, 22,295.85 and 4,869.48

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Solution

The fourth proportional to 14,861.91, 22,295.85 and 4,869.48 is: 7,305.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,861.91 : 22,295.85 = 4,869.48 : x
  2. Step 2: Convert to fraction form
    14,861.91/22,295.85 = 4,869.48/x
  3. Step 3: Cross multiply
    14,861.91x = 22,295.85 × 4,869.48
  4. Step 4: Simplify right side
    14,861.91x = 108,569,195.66
  5. Step 5: Solve for x
    x = 108,569,195.66/14,861.91
  6. Step 6: Final answer
    x = 7,305.20

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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.