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Finding the Fourth Proportional to 17,879.80, 26,699.28 and 14,599.30

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Solution

The fourth proportional to 17,879.80, 26,699.28 and 14,599.30 is: 21,800.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,879.80 : 26,699.28 = 14,599.30 : x
  2. Step 2: Convert to fraction form
    17,879.80/26,699.28 = 14,599.30/x
  3. Step 3: Cross multiply
    17,879.80x = 26,699.28 × 14,599.30
  4. Step 4: Simplify right side
    17,879.80x = 389,790,798.50
  5. Step 5: Solve for x
    x = 389,790,798.50/17,879.80
  6. Step 6: Final answer
    x = 21,800.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.