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Finding the Fourth Proportional to 14,815.10, 20,336.00 and 13,098.92

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Solution

The fourth proportional to 14,815.10, 20,336.00 and 13,098.92 is: 17,980.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,815.10 : 20,336.00 = 13,098.92 : x
  2. Step 2: Convert to fraction form
    14,815.10/20,336.00 = 13,098.92/x
  3. Step 3: Cross multiply
    14,815.10x = 20,336.00 × 13,098.92
  4. Step 4: Simplify right side
    14,815.10x = 266,379,469.95
  5. Step 5: Solve for x
    x = 266,379,469.95/14,815.10
  6. Step 6: Final answer
    x = 17,980.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.